Grass Valley 2200 User Manual

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Page 1

Protocol Manual

MODEL 2200/3000/4000

DIGITAL PRODUCTION SWITCHERS

TP0350-03 A1

FIRST PRINTNG: MAY 1997

5.1software release

and later

Page 2

Telephone Numbers

North America

(800) 547-8949 Fax: (916) 478-3181 (changes to (530) 478-3181 as of 11/1/97)

Brazil

55 11 37 41 8422

Mexico

52 5 666 6333

Hong Kong

852 259 355 00

Elsewhere

Distributor or sales ofﬁce from which equipment was purchased.

Web Addresses

Grass Valley Email Support

GVGSERVICE@tek.com

Grass V alley Products Customer Service Information

Telephone Support

Grass Valley is committed to providing the most responsive and professional product support available anywhere. We have a fully staffed, highly trained support team ready to respond to anything from a simple question to an emergency repair. If you need assistance, contact one of the Customer Support numbers listed at left.

E-mail Support

All Grass Valley customers receive free e-mail support. You may communicate your questions and other support needs to Grass Valley at the e-mail address listed at left.

T ektronix on the W orld Wide Web

Tektronix maintains a site on the World Wide Web (WWW) which contains customer support documents and new product information. New and updated information is always being added, so check the site frequently. The site address is listed at left. Grass Valley Products maintains a page on TektronixÕ web site which can be accessed directly via the listed address.

Grass Valley W eb Page

http://www.tek.com/Grass_V alley

Tektronix W eb Site

http://www.tek.com

Postal Addresses

Mail

Tektronix Grass Valley Products P.O. Box 1114 Grass Valley, CA 95945

Shipping

Tektronix Grass Valley Products 400 Providence Mine Rd., Nevada City, CA 95959

o o

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information

in this publication supersedes that in all previously published material. Specifications and

price change privileges reserved. TEKTRONIX, TEK, Grass Valley Group, Borderline,

E-MEM, TEN-X, Wavelink, and are registered trademarks, and Air Link, Auto Match,

Doubletake, E-Disk, Eagle V, Emphasys, EZ-Link, 409, Grass Valley, Horizon, Jogger, Kaden-

za, Kaleidoscope, K-Mask, Key-Layer, Key-Link, Krystal, MASTER System, Master 21, MAX,

Omni-Key, Performer, Programmed Motion, Silhouette, Softset, SqueezeBack, Streamline,

Super Edit, TEN-20, 20-TEN, Trace, TrailBlazer, VideoDesktop, Flex-Time, and XEDL are

trademarks of Tektronix, Inc. P.O. Box 1000 Wilsonville, OR 97070-1000 U.S.A.

o o

The information in this manual is furnished for informational use only, is subject to change

without notice, and should not be construed as a commitment by Tektronix, Inc. Tektronix

assumes no responsibility or liability for any errors or inaccuracies that may appear in this

publication.

o o

Tektronix, Inc., Video and Networking Division, P.O. Box 1114 Grass Valley, California

95945 U.S.A.

Page 3

Section 1 — Introduction

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Manual Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Editor Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Editor Port Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Model 3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Communication Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Model 2200/4000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Communication Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Serial Data Word Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Editor Enable Pushbutton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

System Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Section 2 — Editor Protocol

Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Editor Protocol Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Break Character . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Address Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Command/Message Block Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Byte Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Effects Address Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Command Code Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Read Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Write Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Status and Data Replies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Error Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Transmission Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Protocol Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

iii

Page 4

Model 2200/3000/4000 Protocols

Section 3 — Editor Interface Commands

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Editor Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Example 1: Bringing the Editor Interface into a Ready State . . . . . . . . . . . . . 3-4

Example 2: How to Set Crosspoint #6, A Row, Mix/Effects 2 . . . . . . . . . . . 3-4

ALL STOP (F2) Command (Version 5.1 and Later) . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Crosspoint Bus (C1) Command (PGM/BKGD A/AUX) . . . . . . . . . . . . . . . . . . . 3-6

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Crosspoint Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Crosspoint Bus (C2) Command (PST/BKGD B) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Crosspoint Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Crosspoint Bus (C3) Command (KEY 1/DSK 1) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Crosspoint Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Crosspoint Bus (C4) Command (KEY 2/DSK 2) . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Crosspoint Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Crosspoint Bus (E2) Command (PVW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Crosspoint Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Crosspoint Bus (E3) Command (MASK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Crosspoint Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Pushbutton Select and Control (C6, C7 and FB) Commands . . . . . . . . . . . . . . . 3-13

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Pushbutton Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Write Wipe Pattern (C8) Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Wipe Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Write Transition Mode (CA) Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Mode Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Write Transition Rate Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Model 3000-2 and 4000-2B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Model 2200-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Model 3000-3 and 4000-2A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Transition Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Write Auto Transition Rate (CC) Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Transition Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Page 5

Contents

Write Key Transition Rate (CD) Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Transition Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Write Recall E-MEM Register (DB) Command . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Mode Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Bit-Mask Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Write Learn E-MEM Register (DA) Command . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35

Mode Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Bit-Mask Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

Write Split Key (E4) Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Crosspoint Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Select ÒLayeredÓ Or ÒStandardÓ (E8) Command . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Mode Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Data Transfer (5E and DE) Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41

Sequence Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

Taking a Snapshot of the Switcher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

Transfer Command Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43

Scenario 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43

Scenario 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Error Detection and Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47

Software Version (6C and EC) Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50

Model Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50

Version Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51

Switcher Model Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51

Timeline Control (4E, 4F, CE, and CF) Commands . . . . . . . . . . . . . . . . . . . . . . . 3-52

Effects Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52

Bit-Mask Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53

Data Field Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53

Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54

Section 4 — Parameter-Based Command Set

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

General Discussion of the Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Timing and Latency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Page 6

Model 2200/3000/4000 Protocols

Crosspoint Control Command(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Crosspoint Query Command (V5.3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Transition Parameter Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Transition Query Command (V5.3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

E-MEM Parameter Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

E-MEM Query Commands (V5.3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Section 5 — Digital Effects Interface

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

General Background about Switcher/DPM Integration . . . . . . . . . . . . . . . . . . . . 5-1

Switcher Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

DPM Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Aux Bus Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Input Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Effect Send and Control Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Switcher Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

DPM Enables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

General Protocol Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Message Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Init/Online . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Source Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Near/Far and Front/Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Source Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Tally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Activity Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Running Effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Subscription . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Message Tokens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Subscribe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Parameter Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Unsubscribe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Issue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Parameter Article . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Send Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

Return Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Page 7

Contents

Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Other Command Specifics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21

Transmission Media and Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21

Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22

Example 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22

Example 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22

Example 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

Example 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

Example 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

Example 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

Example 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25

Example 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25

Example 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26

Index

vii

Page 8

Model 2200/3000/4000 Protocols

viii

Page 9

Introduction

General Description

The Þrst four sections of this document describe the communications protocol

supported by the Model 2200, 3000, and 4000 Switchers for use by editors. This

protocol is called the Òeditor protocolÓ or Òeditor interfaceÓ in this document. This

protocol is used by Grass Valley Sabre and Super Edit Editors. The information is

provided in this manual for use by other vendors wishing to interface their editors

to these Grass Valley switchers.

Detailed on the following pages are the protocols, data formats, and system timing

requirements for commands exchanged between an editor and the Model 2200,

3000, and 4000 Production Switchers. Although the protocol is common for all of

these switcher models, the different models do differ in their capabilities. The

detailed capabilities of each model are described in the pertinent Operation

manual. However, in general, the switchers do for the most part provide the same

functionality. From the perspective of an editor, the major differences between the

models are the number of M/Es and whether or not the switcher has a DSK and

PGM/PST bus.

Manual Contents

In addition, Section 5 of this manual describes the Control-Point Language (CPL)

protocol used with the Grass Valley Krystal digital picture manipulator (DPM).

This manual has been revised to incorporate changes made in the software since

its initial release.

Section 1 Ñ introduces this manual and the switcher communications protocol.

Section 2 Ñ describes the editor serial protocol.

Section 3 Ñ lists and explains the speciÞc commands used to control the switcher

for Version 5.1 and later, and for Version 5.0 and earlier.

Section 4 Ñ lists and explains the new parameter-based command set (PBCS) for

reading, setting, and trimming the switcher state directly, introduced with

Version 5.1.

Section 5 Ñexplains the effect recall and run (including the switcherÕs run lever

arm), control of switcher aux busses by the DPM when used as input selectors,

and on air tally involving the DPM with Version 5.1.

1-1

Page 10

Section 1 Ð Introduction

Editor Connectivity

An external editor controls the switcher via the EDITOR serial connector:

Electrical and mechanical speciÞcations for the port are shown in Table 1-1.

Port J6 on Model 3000

Port J3 on Models 2200 and 4000

Table 1-1. Editor Port SpeciÞcations

Item Description

Baud Rate 38,400 Word Size 8 bits, 1 start bit, 1 stop bit only Parity ODD only (1) Communications RS-422 or RS-232, depending upon the Editor Connector 9-pin D-subminiature

(1) The switcher may initialize with a default Parity setting of NONE. If so, this parameter must be

set to ODD in the Conﬁg/External IF/Editor IF menu.

The pinout for the EDITOR port is shown in Table 1-2.

Table 1-2. Editor Port Pinout

Pin Signal Pin Signal

1 Common 6 Common 2 TX 7 TX+ 3 RX+ 8 RX4 Common 9 Common 5NC

1-2

Page 11

Editor Port Jumpers

Jumper settings on the Control Processor module must be set as follows for proper

operation of the EDITOR port:

Model 3000

For the Model 3000, the EDITOR port jumpers are located on the Control

Processor module (068906) between the M/E 2 Processor mezzanine board

(068916) and the Serial Communications mezzanine board (068918). See Figure 1-

1. Jumper J71 sets the communication standard (RS-232 or RS-422); Jumper J70 sets

the EDITOR port termination (IN or OUT).

Communication Standard

Editor Port Jumpers

For RS-422 , set the two jumpers of J71 to the in Figure 1-1. This connects pins 1 and 3 together and pins 2 and 4 together.

For RS-232 , set the two jumpers of J71 to the 3 and 5 together and pins 4 and 6 together.

J71

TERM

OUT

Figure 1-1. EDITOR Port Jumper Settings on Model 3000

J70

EDITOR

(shown set for RS422, terminated)

DIFF RS232

M/E 2 Processor

Mezzanine Board

Serial Communication

Mezzanine Board

(068918)

DIFF

RS232

(068916)

position (RS-422) as shown

position. This connects pins

0350-11

Control

Processor

Module

(068906)

rear

edge

connector

Termination

Set the two jumpers of J70 to either the terminated) position, depending on the requirements of your system.

If J71 is set for RS-232, Jumper J70 has no effect.

(terminated) position or the

OUT

(not

1-3

Page 12

Section 1 Ð Introduction

Model 2200/4000

For the Model 2200 or Model 4000, the EDITOR port jumpers are located on the

Control Processor II module (064806) as shown in Figure 1-2. Jumper J15 sets the

communication standard (RS-232 or RS-422); Jumpers J16, J17, and J18 set the

EDITOR port termination (terminated or not terminated).

J16

261

0350-12

J18

261

J15

EDITOR

RS422/RS232

SELECT

J17

SERIAL COMMUNICATION

TERMINATION SELECT

M/E 2 Processor

Mezzanine Board

(068916)

Figure 1-2. EDITOR Port Jumper Settings on Model 4000

(shown set for RS-422, terminated)

Communication Standard

For RS-422 , set the two jumpers of J15 to the upper (RS422) position as shown in Figure 1-2. This connects pins 1 and 3 together and pins 2 and 4 together.

For RS-232 set the two jumpers of J15 to the lower (RS232) position. This connects pins 3 and 5 together and pins 4 and 6 together.

Control

Processor II

Module

(064806)

rear

edge

connector

1-4

Termination

Set jumpers J16, J17, and J18 to either the upper (terminated) or lower (not terminated) position, depending upon the requirements of your system. All three of these jumpers should be set to the same position (all up or all down). There is only one jumper for each of these jumper blocks.

If J15 is set for RS-232, Jumpers J16 through J18 have no effect.

Page 13

Serial Data Word Description

The serial data word contains eleven bits, as shown in Figure 1-3:

Serial Data Word Description

0350-02

1234

Data, 8 Bits, LSB First

Start Bit, Always Zero

Previous Character's Stop Bit

Stop Bit, Always One

Next Character's Start Bit

11 Bits Character Length

Parity Bit

567

PDD

Figure 1-3. Serial Data Word

1-5

Page 14

Section 1 Ð Introduction

Editor Enable Pushbutton

The

EDIT

pushbutton in the External Interface area of the Control Panel (Figure 1-

4) controls editor access to the switcher. When pressed, the pushbutton lights to

indicate that the switcher can be controlled through the Editor Interface. Pressing

EDIT

a second time turns the lamp off and disables editor control of the switcher.

When

EDIT

opposed to those requesting status information) are not forwarded to the switcher

as they arrive from the editor. This action by the switcher does not affect the editor,

which continues to send messages and function normally, even though it is being

ignored.

is turned off, protocol messages affecting switcher parameters (as

0350-10

EXTERNAL INTERFACE

DPMPERIPHGPIEDIT

System Performance

The Editor Interface can continuously receive and process a steady stream of

commands. Although all commands are received, some time may be required to

act upon these commands. For example, transferring E-MEM

the editor and the switcher may take several seconds to complete.

Any Read Command has a switcher latency of 2 Þelds; that is, the response will

occur 2 Þelds after the Read Command has been received.

All other commands except E-MEM and ConÞguration Transfer Commands have

a switcher latency of 10 Þelds.

E-MEM and ConÞguration Transfer Commands have no Þxed latency in the

switcher. The transfer will take place as soon as all higher-level commands have

been executed.

The transfer commands have a one second timeout imposed on the time between

each packet transmission.

Figure 1-4. External Interface Pushbuttons

registers between

1-6

Page 15

Editor Protocol

Serial Communications

This section describes the communications protocol and its error handling.

A Video Editing System uses the switcher editor port to exercise real-time control

over the switcher's functions. The editor is really an external computer that can

input and output functions. Such functions select crosspoints, perform auto

transitions, or perform E-MEM (Effects Memory) register recalls, to name just a

few possibilities. Refer to the appropriate switcher Operation manual for

deÞnitions and explanations of the switcher functions and features.

Editor Protocol Access

The 2200/3000/4000 Editor Protocol is based upon, but not identical to, the

proposed SMPTE (Society of Motion Picture and Television Engineers) Digital

Control Interface, which establishes a means for the orderly ßow of data over a

serial bus.

The major components of the protocol are shown in Figure 2-1 and discussed in

the following paragraphs.

Break

Character

Figure 2-1. Components of the Model 2200/3000/4000 Editor Protocol Access

Address

Byte

Command/Message Blocks

0350-06

2-1

Page 16

Section 2 Ð Editor Protocol

Break Character

The main component of the Editor Interface protocol is a 1-1/2 character-length

Òbreak.Ó A break consists of a spacing or logical low (0) condition on the serial bus

(see Figure 2-2) followed by a minimum of two bit-times of marking (logic 1)

condition. The Bus Controller (editor) transmits a break to the switcher,

forewarning of an impending message.

1 Bit Time (26µS @ 38.4K Baud)

0350-07

Spacing Data 17 to 20 Bit Times

Marking Data 2 or More Bit Times

First Character of Address Byte

SMPTE Break Character

Figure 2-2. Break Character

The break forces all tributaries , or listeners (such as the switcherÕs editor port),

from the ÒIdleÓ state into the ÒActiveÓ state. A break can be sent only by the Edit

Controller. When the switcher receives the break, it ceases all bus

communications, resets any communication error condition, and prepares to

receive an address.

2-2

Page 17

Idle

Editor Protocol Access

Power On

– or – Reset

Transmit

Negative

‘Ack’ (85H)

Line Error

Invalid Address

Line Error

Transmit

Data Msg

– or –

Valid Break

– or –

Timeout

Valid Select Address (30H)

“Write”

Msg

Valid Break

Active

Transmit

‘Ack’ (84H)

Selected

Valid Poll Address (31H)

Transmit

‘Ack’ (84H)

Timeout

Valid Break

Transmit

Negative

‘Ack’ (85H)

Transmit Protocol

Error Msg

(01 40)

Validate

Fails

Msg Block

“Read” Msg

“Read”

Msg

Execute

Msg Block

“Write” Msg

Figure 2-3. Serial Interface Protocol State Diagram

Transmit Protocol

Accept Msg

(01 80)

2-3

Page 18

Section 2 Ð Editor Protocol

Address Byte

Once the break has been received, the Editor Interface advances to the active state

and begins expecting a one-byte address. The switcher will respond to the

switcher address 30H (Hexadecimal), when transmitted by the Edit controller.

After receiving the address, the Editor Interface accepts command/message block

transmissions containing commands, data requests, and other data directed

toward the switcher. As long as communication errors do not occur, the Editor

Interface can skip the break/address sequence during the remainder of the

transmissions. Command/message blocks can be sent repeatedly, one after

another, without break interruptions.

The address is one byte long and directed to a speciÞc tributary. If the received

address matches the tributaryÕs assigned address, the tributary advances to the

Selected state and awaits instructions. The address of the switcher is Þxed as 30H.

In response to the address, the 3000 transmits an acknowledgment byte of 84H to

the controller, indicating the change in status to the ÒSelectedÓ State. If an address

of 31H is received, the switcher transmits an acknowledgment byte of 84H to the

controller, but stays in the ÒActiveÓ State. If the address does not match, the

tributary drops off the bus (goes Idle) and awaits another break.

Note that when the switcher receives a break without an address as a result of an

Editor Interface reset (

Interface), it returns the 84H acknowledgment byte to the controller. If the edit

controller sends subsequent breaks to the switcher (when no Editor Interface reset

has occurred), the switcher responds by sending 85H followed by 84H.

RESET

button pressed, or a warm or cold start of the Editor

2-4

Page 19

Command/Message Block Structure

In the Selected state, the Editor Interface receives command/message blocks that

direct switcher operations. The basic message structure is shown in Figure 2-4.

Command/Message Block Structure

0350-09

Byte Count

Byte

Byte Count

Effects

Addr. Byte

Command Code Byte

Message Bytes

Maximum Size

255 Bytes

Figure 2-4. Message Structure

The maximum length of a message is 255 bytes plus the byte count byte. At a baud

rate of 38,400, the maximum length command/message takes more than 4 Þelds to

complete.

The Editor Interface can handle data continuously, receiving a contiguous stream

of command/message blocks. Such an ability enables multiple switcher

operations to be performed without constant cycling through the break/address

sequence. Responses (handshakes or read data) are returned in the same order as

the command/message blocks are received.

The command/message block can range in size from two to 256 bytes. The Þrst

byte of the block contains the byte count. A byte count consists of the total number

of subsequent bytes in the block; valid byte count values range from 01H to FFH

(1 to 255). After receiving a valid byte count (01H to FFH) and the proper number

of data bytes (1 to 255), the Model 3000 executes the command.

Effects Address Byte

The second byte of the command/message block is the effects address byte,

typically referred to as EX. This byte identiÞes the desired Òeffect bankÓ within the

switcher where the associated command will go. Valid Effects Addresses for each

command are speciÞed in Section 3.

2-5

Page 20

Section 2 Ð Editor Protocol

Command Code Byte

The command code is the third byte of the command/message block. Command

codes fall into two broad categories: read commands and write commands. Only

one command is allowed in any command/message block. Likewise, only one

response is embedded in any command/message block.

Read Commands

Read commands interrogate the status of the speciÞed operational parameter of

the switcher. When the editor issues a read command/message block, the

switcher responds by sending the current status of the requested operational

parameter(s) back to the editor. This status information is returned in the format of

the write command/message block. By echoing the write format, the editor can

later send responses to a read command to the switcher and cause execution of

that function.

Write Commands

Write commands are used by the editor to change operational parameter(s) or

initiate a function within the switcher.

2-6

Page 21

Status and Data Replies

The editor interface does not respond to the controlling device upon the receipt of

each and every character. It does respond to the last character of any complete

message. The Þrst character of any message is the Òbyte countÓ byte, specifying

the number of message bytes that are to follow. A message transmission is

complete when the total number of characters speciÞed by that byte plus that byte

itself have been received.

There are Þve possible replies in response to the complete message as outlined in

Table 2-1.

Response Type Message In Response To:

Acknowledge 0x84 Valid Select or Poll Address

Status and Data Replies

Table 2-1. Possible Command Responses

Negative Acknowledge

Protocol Error 0x01 0x40 Invalid Protocol Message (Read or Write);

Command Accepted 0x01 0x80 Valid Protocol “Write” Message Data Message Write Message

Once the interface is placed into the Select State, the most common response is one

of the two-byte status reply messages. The second byte of this message is the

response to the command. The upper two bits signify whether the command was

accepted or not as illustrated in the following Þgure:

Bit Bit

0x85 Invalid Select or Poll Address; Line Error

Timeout Error in Select State

Valid Protocol “Read” Message

(length varies)

7 6 5 4 3 2 1 0

X X 0 0 0 0 0 0

1 = Protocol Error 1 = Command Accepted

Note that these bits are mutually exclusive; that is, both may not be set in the same

message.

If Command Accept is true, the message was forwarded to its handler for

execution. However, this status reply only means that the command was received

with no transmission errors and passed the protocol validation test (byte count

and command code) for the message structure itself. The message may still not be

executed by the Switcher for failures on the Protocol Command level.

2-7

Page 22

Section 2 Ð Editor Protocol

Error Detection

Transmission Errors

Error detection is a normal part of the communication process. For this Protocol

Interface, error detection and reporting is limited to problems that occur at the

transmission and reception level of communication. These type of errors fall into

two basic categories, line and time-out errors.

Line errors include three speciÞc types of errors that may occur with each

character transmission and reception.

These errors occur when the Serial Data Word becomes corrupted.

Parity error

Framing error

Data Overrun error

Time-out errors occur when too much time elapses between the reception of

characters during a message transmission.

When the Editor Interface detects communication errors, it responds with a

negative acknowledge of 85H and then aborts all communications. Any remaining

un-executed commands are discarded after the error indication occurs and the

Interface is forced back into the Idle state. Refer to Figure 2-2 on page 2-2 and Table

2-1 for details of the detection and corresponding response to each error type.

In order to resume communications, the Editor must transmit a break/address

sequence to return the channel to the Select state. If the Editor Interface does not

receive a valid tributary or poll address following the break, it falls back into the

Idle state without transmitting the 85H Negative Acknowledge byte. Line errors

that occur during an attempt to send and receive the address byte still result in a

Negative Acknowledge byte being sent back to the Editor.

2-8

Page 23

Protocol Errors

Errors can occur on the Protocol level itself; that is, the message may be received

okay, but may not actually be executed due to problems with content or context.

The only error that will be reported to the Editor as a Protocol Error (01 40) occurs

if either the byte count or the command code fail the validation test when a

complete message is received.

All other protocol errors go unreported back to the Editor. The only response the

Editor receives to these messages is a Command Accepted message. The handler,

when it uncovers a problem, will simply throw the message away and the user

will see no change to the operation of the Switcher.

Some possible causes of unreported protocol errors are listed as follows:

Content Errors:

¥ ¥

Invalid effects address.

Invalid data (register number, analog value, etc.)

Error Detection

Context Errors:

Command is Òpanel-centricÓ and may only be executed when the Switcher is in a specific state.

2-9

Page 24

Section 2 Ð Editor Protocol

2-10

Page 25

Introduction

Editor Interface Commands

This section details the Switcher Editor Interface commands for Model 2200, 3000,

and 4000 Switchers.

References to pushbuttons are shown in capital letters, using the legends as they

appear on a Control Panel. Control Panel section names are shown in initial

capitals.

NOTE:

by the notation Òdecimal.Ó

All values within the tables are hexadecimal unless otherwise indicated

Editor Interface Commands

This section describes the traditional editor command set which bears a family

resemblance to earlier generation Grass Valley switchers such as the Model 200

and the Model 300.

Editor interface commands are detailed in tables presented on the following

pages. Addresses, byte counts, important names, and supporting details are listed

for each command.

With Software Version 5.1, new commands are added and some existing

commands enhanced. This is clearly marked for each command. Also, with

Version 5.1, Grass Valley has developed a new parameter-based command set

(PBCS) for advanced editing control. PBCS allows setting, trimming, and reading

of all internal switcher parameters completely independent of panel operations.

This is described in Section 4.

3-1

Page 26

Section 3 Ð Editor Interface Commands

The appropriate command to use may be determined as follows:

For basic crosspoint control use:

Crosspoint Bus (C1) Command (PGM/BKGD A/AUX) on page 3-6

Crosspoint Bus (C2) Command (PST/BKGD B) on page 3-8

Crosspoint Bus (C3) Command (KEY 1/DSK 1) on page 3-9

Crosspoint Bus (C4) Command (KEY 2/DSK 2) on page 3-10

Crosspoint Bus (E2) Command (PVW) on page 3-11

Crosspoint Bus (E3) Command (MASK) on page 3-12

Write Split Key (E4) Command on page 3-38

Select Wipe Patterns by using:

¥ Write Wipe Pattern (C8) Command on page 3-21

Control the Transition mode pushbuttons by using:

¥ Write Transition Mode (CA) Command on page 3-23

Set transition rates by using:

¥ Write Auto Transition Rate (CC) Command on page 3-27 ¥ Write Key Transition Rate (CD) Command on page 3-29

To simulate the pressing of buttons on the transition subpanel use:

¥ Pushbutton Select and Control (C6, C7 and FB) Commands on page 3-13

For E-MEM learns and recalls use:

¥ Write Learn E-MEM Register (DA) Command on page 3-35 ¥ Write Recall E-MEM Register (DB) Command on page 3-31

For E-MEM and ConÞguration Data transfer use:

¥ Data Transfer (5E and DE) Commands on page 3-41

To control the timeline for multiple keyframe effects use:

¥ Timeline Control (4E, 4F, CE, and CF) Commands on page 3-52

To simulate pressing buttons on the timeline run control subpanel use:

¥ Pushbutton Select and Control (C6, C7 and FB) Commands on page 3-13

For general use by an editor, the following commands are provided:

¥ ALL STOP (F2) Command (Version 5.1 and Later) on page 3-5 ¥ Software Version (6C and EC) Commands on page 3-50 ¥ Select ÒLayeredÓ Or ÒStandardÓ (E8) Command on page 3-40

3-2

Page 27

Revision History

The following commands were not supported prior to Version 5.1:

¥ ALL STOP (F2) Command (Version 5.1 and Later) on page 3-5 ¥ Software Version (6C and EC) Commands on page 3-50 ¥ Timeline Control (4E, 4F, CE, and CF) Commands on page 3-52

The following commands had functionality added for Version 5.1 that was not

supported in Version 5.0 and earlier:

¥ Pushbutton Select and Control (C6, C7 and FB) Commands on page 3-13 ¥ Write Transition Mode (CA) Command on page 3-23 ¥ Write Auto Transition Rate (CC) Command on page 3-27 ¥ Write Key Transition Rate (CD) Command on page 3-29 ¥ Write Recall E-MEM Register (DB) Command on page 3-31 ¥ Write Learn E-MEM Register (DA) Command on page 3-35 ¥ Data Transfer (5E and DE) Commands on page 3-41

The enhancements introduced in Version 5.1 to these commands are all additions;

functionality existing in Version 5.0 is still supported.

3-3

Page 28

Section 3 Ð Editor Interface Commands

Application Examples

Several examples of serial communications using the switcher Editor Interface are

provided on the following pages in the sections appropriate to the commands. In

general, ÒTransmitÓ refers to communication from the editor to the switcher and

ÒReceiveÓ refers to communication from the switcher to the editor. Refer to

speciÞc command tables for details on these examples.

Example 1: Bringing the Editor Interface into a Ready State

Transmit: Break Address

BRK 30

Receive: Status

Example 2: How to Set Crosspoint #6, A Row, Mix/Effects 2

Transmit: Byte Count Ex Address Command Data

03 02 C1 06

Receive: Byte Count Status

01 80

3-4

Page 29

ALL STOP (F2) Command (Version 5.1 and Later)

The ALL STOP command is issued to set all or a speciÞc part of the switcher to a

known state. The command causes the following functions to occur:

1. An ongoing KEY 1 MIX or KEY 2 MIX is stopped.

2. An ongoing AUTO TRAN (Transition) is stopped.

3. An ongoing EFF DIS (Effects Dissolve) is stopped.

4. An ongoing SEQ (Sequence) is stopped.

5. The lever arm is set to a limit.

6. The transition type is set to MIX.

7. The transition mode is set to BKGD in Standard Mode and BKGD A in Layered Mode.

8. For Standard mode, all Keys are removed. For Layered mode, all Keys are left alone.

9. The crosspoint selections remain unchanged.

Table 3-1. All Stop Command

Function

Write 03 EX F2 FF

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the ALL STOP command are as follows:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System 01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System 04 Downstream Keyer (DSK) 05 Background (BKGD) 06 Miscellaneous (MISC) 07 DPM 1 08 DPM 2 09 DPM 3 0A DPM 4 0B All levels

3-5

Page 30

Section 3 Ð Editor Interface Commands

Crosspoint Bus (C1) Command (PGM/BKGD A/AUX)

The Write Crosspoint Bus command enables the editor to select any crosspoint on a bus speciÞed by the effects address, and the command code.

Table 3-2. Crosspoint Bus Command

Function

Write Crosspoint Bus 03 EX C1 (Write) Crosspoint #

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the Crosspoint Bus command are as follows:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST System (PGM) 01 Mix/Effects 1 (BKGD A) 02 Mix/Effects 2 (BKGD A) 03 Mix/Effects 3 (BKGD A) 0C Aux Bus 1A 0D Aux Bus 1B 0E Aux Bus 2A 0F Aux Bus 2B 10 Aux Bus 3A 11 Aux Bus 3B 12 Aux Bus 4A 13 Aux Bus 4B 14 Aux Bus 5A 15 Aux Bus 5B 16 Aux Bus 6A 17 Aux Bus 6B 18 Aux Bus 7A 19 Aux Bus 7B 1A Aux Bus 8A 1B Aux Bus 8B 1C Aux Bus 9A 1D Aux Bus 9B

3-6

Page 31

Crosspoint Bus (C1) Command (PGM/BKGD A/AUX)

Crosspoint Numbers

Valid crosspoint numbers are as follows:

Table 3-3. Common Crosspoint Numbers for All Buses

Crosspoint Name Number Crosspoint Name Number

Crosspoint 1 01H Crosspoint 29 1DH Crosspoint 2 02H Crosspoint 30 1EH Crosspoint 3 03H Crosspoint 31 1FH Crosspoint 4 04H Crosspoint 32 20H Crosspoint 5 05H Crosspoint 33 21H Crosspoint 6 06H Crosspoint 34 22H Crosspoint 7 07H Crosspoint 35 23H Crosspoint 8 08H Crosspoint 36 24H Crosspoint 9 09H Crosspoint 37 25H Crosspoint 10 0AH Crosspoint 38 26H Crosspoint 11 0BH Crosspoint 39 27H Crosspoint 12 0CH Crosspoint 40 28H Crosspoint 13 0DH Crosspoint 41 29H Crosspoint 14 0EH Crosspoint 42 2AH Crosspoint 15 0FH Crosspoint 43 2BH Crosspoint 16 10H Crosspoint 44 2CH Crosspoint 17 11H Crosspoint 45 2DH Crosspoint 18 12H Crosspoint 46 2EH Crosspoint 19 13H Crosspoint 47 2FH Crosspoint 20 14H Crosspoint 48 30H Crosspoint 21 15H M/E 1 31H Crosspoint 22 16H M/E 2 32H Crosspoint 23 17H M/E 3 33H Crosspoint 24 18H PGM Out 34H (1) Crosspoint 25 19H M/E 1 PVW 35H (2) Crosspoint 26 1AH M/E 2 PVW 36H (2) Crosspoint 27 1BH M/E 3 PVW 37H (2) Crosspoint 28 1CH DSK PVW 38H (2)

(1) Accessible only on AUX buses, PVW bus, and MASK bus (2) Accessible only on PVW bus

3-7

Page 32

Section 3 Ð Editor Interface Commands

Crosspoint Bus (C2) Command (PST/BKGD B)

The Write Crosspoint Bus command enables the editor to select any crosspoint on a bus speciÞed by the effects address, and the command code.

Table 3-4. Crosspoint Bus Command

Function

Write Crosspoint Bus 03 EX C2 (Write) Crosspoint #

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the Crosspoint Bus command are as follows:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System (PST) 01 Mix/Effects 1 (BKGD B) 02 Mix/Effects 2 (BKGD B) 03 Mix/Effects 3 (BKGD B)

Crosspoint Numbers

Valid crosspoint numbers are shown in Table 3-3, ÒCommon Crosspoint Numbers for All Buses,Ó on page 3-7.

3-8

Page 33

Crosspoint Bus (C3) Command (KEY 1/DSK 1)

The Write Crosspoint Bus command enables the editor to select any crosspoint on a bus speciÞed by the effects address, and the command code.

Table 3-5. Crosspoint Bus Command

Function

Write Crosspoint Bus 03 EX C3 (Write) Crosspoint #

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the Crosspoint Bus command are as follows:

EFFECTS ADDRESS ASSIGNMENTS

01 Mix/Effects 1 (KEY 1) 02 Mix/Effects 2 (KEY 1) 03 Mix/Effects 3 (KEY 1) 04 DSK 1

Crosspoint Numbers

Valid crosspoint numbers are shown in Table 3-3, ÒCommon Crosspoint Numbers for All Buses,Ó on page 3-7.

3-9

Page 34

Section 3 Ð Editor Interface Commands

Crosspoint Bus (C4) Command (KEY 2/DSK 2)

The Write Crosspoint Bus command enables the editor to select any crosspoint on a bus speciÞed by the effects address, and the command code.

Table 3-6. Crosspoint Bus Command

Function

Write Crosspoint Bus 03 EX C4 (Write) Crosspoint #

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the Crosspoint Bus command are as follows:

EFFECTS ADDRESS ASSIGNMENTS

01 Mix/Effects 1 (KEY 2) 02 Mix/Effects 2 (KEY 2) 03 Mix/Effects 3 (KEY 2) 04 DSK 2

Crosspoint Numbers

Valid crosspoint numbers are shown in Table 3-3, ÒCommon Crosspoint Numbers for All Buses,Ó on page 3-7.

3-10

Page 35

Crosspoint Bus (E2) Command (PVW)

The Write Crosspoint Bus command enables the editor to select any crosspoint on a bus speciÞed by the effects address.

Table 3-7. Crosspoint Bus Command

Crosspoint Bus (E2) Command (PVW)

Function

Write Crosspoint Bus 03 EX E2 (Write) Crosspoint #

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the Crosspoint Bus command are as follows:

EFFECTS ADDRESS ASSIGNMENTS

06 PVW Bus (MISC)

Crosspoint Numbers

Valid crosspoint numbers are shown in Table 3-3, ÒCommon Crosspoint Numbers for All Buses,Ó on page 3-7.

3-11

Page 36

Section 3 Ð Editor Interface Commands

Crosspoint Bus (E3) Command (MASK)

The Write Crosspoint Bus command enables the editor to select any crosspoint on a bus speciÞed by the effects address.

Table 3-8. Crosspoint Bus Command

Function

Write Crosspoint Bus 03 EX E3 (Write) Crosspoint #

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the Crosspoint Bus command are as follows:

EFFECTS ADDRESS ASSIGNMENTS

06 MASK Bus (MISC)

Crosspoint Numbers

Valid crosspoint numbers are shown in Table 3-3, ÒCommon Crosspoint Numbers for All Buses,Ó on page 3-7.

3-12

Page 37

Pushbutton Select and Control (C6, C7 and FB) Commands

The Pushbutton Select command (FB) is a write-only command that performs a ÒpushÓ of the speciÞed pushbutton number, just as if the button had actually been pressed at the control panel.

The Pushbutton Write commands turn the designated pushbutton either ÒonÓ (C6) or ÒoffÓ (C7).

Table 3-9. Pushbutton Select and Control Commands

Function

Write PB/L# ON 04 EX C6 (Write

Write PB/L# OFF 04 EX C7 (Write

Select PB/L# 04 EX FB (Write) PB/L# High, PB/L# Low

Byte Count

Effects Address

Command Code

on)

off)

Message

PB/L# High, PB/L# Low

Effects Addresses

Valid effects addresses for the Pushbutton Control commands are:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System 01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System 04 Downstream Keyer (DSK) 05 Background (BKGD) 06 Miscellaneous (MISC) 0B Master E-MEM

3-13

Page 38

Section 3 Ð Editor Interface Commands

Pushbutton Numbers

The pushbutton numbers supported by these commands cover the transition subpanels and the timeline run control subpanel. These numbers are speciÞed in Table 3-10, ÒTransition Subpanel Pushbutton Numbers,Ó on page 3-15 and Table 311, ÒKeyframing Pushbutton Numbers,Ó on page 3-16.

The original intent of the switcher design team was to extend the range of these commands to cover the pressing of all buttons on the control panel. However, over time, it became clear that a better serial interface to provide for editors is the parameter-based command set (PBCS). This new command set directly sets the internal switcher state irrespective of whatever control panel may, or may not, be attached. So, for backward compatibility, a further set of pushbutton numbers is supplied for the wipe subpanel in Table 3-12, ÒObsolete Pushbutton Numbers Ð,Ó on page 3-17. Although these commands do work, it is recommended that wipes be set by using the Write Wipe Pattern (C8) Command on page 3-21 or the PBCS described in Section 4.

WARNING

Specifying an invalid pushbutton number may produce an unpredictable result.

Also, please note that on the M/E Transition Panel (and DSK for 4000-2A):

¥ MIX and WIPE are mutually exclusive. Turning on one turns off the other.

3-14

Page 39

Pushbutton Select and Control (C6, C7 and FB) Commands

Table 3-10. Transition Subpanel Pushbutton Numbers

Pushbutton#

0201H X CUT X X 0202H X AUTO TRAN X X 0203H X X PST BLK X X 0206H X X (3) MIX X (2) X 0207H X BKGD X 0208H X X (3) WIPE X (2) X 0209H X DSK 1 X 020AH X BKGD A X 020BH X DSK 2 X 020CH X BKGD B X 020DH X DSK 1 ON X 020EH X KEY 1 X 020FH X DSK 2 ON X 0210H X KEY 2 X

Select (Press)

Write (On/Off)

Pushbutton Function

PGM/ DSK

M/E

Master E-MEM

0212H X X KEY PRI X 0214H X BKGD A ON X 0216H X BKGD B ON X 0218H X TRANS KEY 1 ON X 021AH X TRANS KEY 2 ON X 0222H X LAYERED X 0223H X (1) X (1) KEY 1 CUT (DSK 1 CUT) X X 0224H X (1) KEY 1 MIX (DSK 1 MIX) X X 0225H X (1) X (1) KEY 2 CUT (DSK 2 CUT) X X 0226H X (1) KEY 2 MIX (DSK 2 MIX) X X

(1) Not supported in Version 5.0 and earlier. (2) Model 4000-2A only. (3) Write On only.

3-15

Page 40

Section 3 Ð Editor Interface Commands

Table 3-11. Keyframing Pushbutton Numbers

Pushbutton#

0501H X (1) X (1) ENABLE PGM PST X (2) 0502H X (1) X (1) ENABLE M/E 1 X (2) 0503H X (1) X (1) ENABLE M/E 2 X (2) 0504H X (1) X (1) ENABLE M/E 3 X (2) 0505H X (1) X (1) ENABLE DSK X (2) 0506H X (1) X (1) ENABLE BKGD X (2) 0507H X (1) X (1) ENABLE MISC X (2) 0508H X (1) X (1) ENABLE DPM 1 X (2) 0509H X (1) X (1) ENABLE DPM 2 X (2) 050AH X (1) X (1) ENABLE DPM 3 X (2) 050BH X (1) X (1) ENABLE DPM 4 X (2) 050CH X (1) X (1) ENABLE ALL X (2) 0544H X PREV X (2) 0545H X NEXT X (2)

Select (Press)

Write (On/Off)

Pushbutton Function

PGM/ DSK

M/E

Master E-MEM

0560H X REWIND X (2) 0561H X X (1) HOLD INPUT X (2) 0562H X X (1) REV X (2) 0563H X X (1) AUTO RUN X (2) 0564H X X (1) STOP NEXT KF X (2) 0565H X RUN X (2) 0580H X X (1) AUTO RCL X (2)

(1) Not supported in Version 5.0 and earlier. (2) Effects addresses are irrelevant and will be ignored. All effects addresses will be treated as 0X0B.

3-16

Page 41

Pushbutton Select and Control (C6, C7 and FB) Commands

Table 3-12. Obsolete Pushbutton Numbers Ð (Sheet 1 of 4)

Pushbutton/ Lamp#

1601H X WIPE SOFT – PRI X X 1602H X WIPE BORD – PRI X X 1603H X WIPE ASPECT – PRI X X 1604H X WIPE ROT POS – PRI X X 1605H X WIPE ROT SPD – PRI X X 1606H X WIPE ROT MAG – PRI X X 1607H X WIPE DIR N ORM – PRI X X 1608H X WIPE DIR REV – PRI X X 1609H X WIPE DIR FLIP – PRI X X 160AH X WIPE SPLIT – PRI X X 160BH X WIPE H MULTI – PRI X X 160CH X WIPE V MULTI – PRI X X 160DH X WIPE POS NORM – PRI X X 160EH X WIPE POS AUTO – PRI X X

Select (Press)

Write (On/Off)

Pushbutton

PGM/ DSK

M/E

Master E-MEM

160FH X WIPE PATT MIX – PRI X X 1610H X WIPE M/E 1 PRI X X 1611H X WIPE M/E 2 PRI X X 1612H X WIPE M/E 3 PRI X X 1613H X WIPE M/E 1 SEC X X 1614H X WIPE M/E 2 SEC X X 1615H X WIPE M/E 3 SECI X X 1616H X WIPE PGM PRI X X 1617H X WIPE PGM SEC X X 1618H X WIPE PATT 0 – PRI X X 1619H X WIPE PATT 1 – PRI X X 161AH X WIPE PATT 2 – PRI X X 161BH X WIPE PATT 3 – PRI X X 161CH X WIPE PATT 4 – PRI X X 161DH X WIPE PATT 5 – PRI X X 161EH X WIPE PATT 6 – PRI X X 161FH X WIPE PATT 7 – PRI X X

3-17

Page 42

Section 3 Ð Editor Interface Commands

Table 3-12. Obsolete Pushbutton Numbers (Continued) Ð (Sheet 2 of 4)

Pushbutton/ Lamp#

1620H X WIPE PATT 8 – PRI X X 1621H X WIPE PATT 9 – PRI X X 1622H X WIPE PATT 10 – PRI X X 1623H X WIPE PATT 11 – PRI X X 1624H X WIPE PATT 12 – PRI X X 1625H X WIPE PATT 13 – PRI X X 1626H X WIPE PATT 14 – PRI X X 1627H X WIPE PATT 15 – PRI X X 1628H X WIPE PATT 16 – PRI X X 1629H X WIPE PATT 17 – PRI X X 162AH X WIPE PATT 18 – PRI X X 162BH X WIPE PATT 19 – PRI X X 162CH X WIPE PATT 20 – PRI X X 162DH X WIPE MENU – PRI X X

Select (Press)

Write (On/Off)

Pushbutton

PGM/ DSK

M/E

Master E-MEM

162EH X WIPE RANDOM – PRI X X 162FH X WIPE TEXTURE – PRI X X 1630H X WIPE UW UNDO – PRI X X 1631H X WIPE UW LEARN – PRI X X 1632H X WIPE USER 1 – PRI X X 1633H X WIPE USER 2 – PRI X X 1634H X WIPE USER 3 – PRI X X 1635H X WIPE USER 4 – PRI X X 1636H X WIPE USER 5 – PRI X X 1637H X WIPE USER 6 – PRI X X 1681H X WIPE SOFT – SEC X X 1682H X WIPE BORD – SEC X X 1683H X WIPE ASPECT – SEC X X 1684H X WIPE ROT POS – SEC X X 1685H X WIPE ROT SPD – SEC X X 1686H X WIPE ROT MAG – SEC X X

3-18

1687H X WIPE DIR NORM – SEC X X

Page 43

Pushbutton Select and Control (C6, C7 and FB) Commands

Table 3-12. Obsolete Pushbutton Numbers (Continued) Ð (Sheet 3 of 4)

Pushbutton/ Lamp#

1688H X WIPE DIR REV – SEC X X 1689H X WIPE DIR FLIP – SEC X X 168AH X WIPE SPLIT – SEC X X 168BH X WIPE H MULTI – SEC X X 168CH X WIPE V MULTI – SEC X X 168DH X WIPE POS NORM – SEC X X 168EH X WIPE POS AUTO – SEC X X 168FH X WIPE PATT MIX – SEC X X 1696H X WIPE PATT 0 – SEC X X 1697H X WIPE PATT 1 – SEC X X 1698H X WIPE PATT 2 – SEC X X 1699H X WIPE PATT 3 – SEC X X 169AH X WIPE PATT 4 – SEC X X 169BH X WIPE PATT 5 – SEC X X

Select (Press)

Write (On/Off)

Pushbutton

PGM/ DSK

M/E

Master E-MEM

169CH X WIPE PATT 6 – SEC X X 169DH X WIPE PATT 7 – SEC X X 169EH X WIPE PATT 8 – SEC X X 169FH X WIPE PATT 9 – SEC X X 16A0H X WIPE PATT 10 – SEC X X 16A1H X WIPE PATT 11 – SEC X X 16A2H X WIPE PATT 12 – SEC X X 16A3H X WIPE PATT 13 – SEC X X 16A4H X WIPE PATT 14 – SEC X X 16A5H X WIPE PATT 15 – SEC X X 16A6H X WIPE PATT 16 – SEC X X 16A7H X WIPE PATT 17 – SEC X X 16A8H X WIPE PATT 18 – SEC X X 16A9H X WIPE PATT 19 – SEC X X 16AAH X WIPE PATT 20 – SEC X X 16ABH X WIPE MENU – SEC X X 16ACH X WIPE RANDOM – SEC X X

3-19

Page 44

Section 3 Ð Editor Interface Commands

Table 3-12. Obsolete Pushbutton Numbers (Continued) Ð (Sheet 4 of 4)

Pushbutton/ Lamp#

16ADH X WIPE TEXTURE – SEC X X 16AEH X WIPE UW UNDO – SEC X X 16AFH X WIPE UW LEARN – SEC X X 16B0H X WIPE USER 1 – SEC X X 16B1H X WIPE USER 2 – SEC X X 16B2H X WIPE USER 3 – SEC X X 16B3H X WIPE USER 4 – SEC X X 16B4H X WIPE USER 5 – SEC X X 16B5H X WIPE USER 6 – SEC X X 16C0H X WIPE POS CENTER X X

Select (Press)

Write (On/Off)

Pushbutton

PGM/ DSK

M/E

Master E-MEM

3-20

Page 45

Write Wipe Pattern (C8) Command

The Write Wipe Pattern command selects the speciÞed primary or secondary wipe pattern for an M/E. Only one primary and one secondary wipe pattern can be active at a time for each M/E.

Table 3-13. Write Wipe Pattern Command

Write Wipe Pattern (C8) Command

Function

Write Wipe Pattern 03 EX C8 (Write) Wipe #

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the Write Wipe Pattern command are:

EFFECTS ADDRESS ASSIGNMENTS

01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System

Wipe Numbers

Wipe numbers range from 00H to 41H, corresponding to decimal numbers 0 through 65 on the Wipe subpanel. Specifying an invalid wipe number can produce unexpected results.

The format of the Wipe Number byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

P/S W W W W W W W

The seven least signiÞcant bits (W W W W W W W) represent the wipe number in hexadecimal.

When the P/S bit is a 0, the editor selects a Primary Wipe Pattern; however, when the P/S bit is a 1, the editor selects a Secondary Wipe Pattern.

Please note that Wipe Pattern number 59, ÒExternal,Ó can be used only with a Secondary Wipe Pattern selection.

3-21

Page 46

Section 3 Ð Editor Interface Commands

Table 3-14. Wipe Pattern Names and Hexadecimal Numbers

Wipe Pattern Name

0 VERTICAL 00H 33 DIAMOND 21H 1 T/L CORNER 01H 34 DUAL DIAGONAL 22H 2 POINT DN 02H 35 DOUBLE H SAWT OOTH 23H 3 CIRCLE 03H 36 DOUBLE V SA WTOOTH 24H 4 DIAG LT 04H 37 4 X 3 RECTANGLE 25H 5 TRIANGLE 05H 38 SMALL RANDOM 26H 6 CLOCK 06H 39 LARGER RANDOM 27H 7 ARROW 07H 40 3 PT STAR 28H 8 HEXAGON 08H 41 4 PT STAR 29H 9 SPIRAL 09H 42 6 PT STAR – Small 2AH 10 HORIZONTAL 0AH 43 6 PT STAR – Large 2BH 11 T/R CORNER 0BH 44 8 PT STAR 2CH 12 POINT RT 0CH 45 TEXTURE 2DH 13 ELLIPSE 0DH 46 SLITSCAN 2EH 14 DIAG RT 0EH 47 V ZIG ZAG 2FH

Hexadecimal

Number

Wipe Pattern Name

Hexadecimal

Number

15 PENTAGON 0FH 48 V SCAN 30H 16 DUAL CLOCK 10H 49 H X-CROSS 31H 17 DIAGONAL CROSS 11H 50 V X-CROSS 32H 18 OCTAGON 12H 51 V SNOWFALL 33H 19 H ZIG ZAF 13H 52 H SNOWFALL 34H 20 V SPLIT 14H 53 V QUAD SPIRAL 35H 21 B/R CORNER 15H 54 DIAG ZIG ZAG 36H 22 POINT LT 16H 55 H QUAD SPIRAL 37H 23 SQUARE 17H 56 T/B ZIG ZAG 38H 24 CROSS 18H 57 L/R ZIG ZAG 39H 25 V SAWTOOTH 19H 58 CHECKERBOARD 3AH 26 H SAWTOOTH 1AH 59 EXTERNAL 3BH 27 5 PT STAR 1BH 60 USER 1 3CH 28 HEART 1CH 61 USER 2 3DH 29 H SCAN 1DH 62 USER 3 3EH 30 H SPLIT 1EH 63 USER 4 3FH 31 B/L CORNER 1FH 64 USER 5 40H

3-22

32 POINT UP 20H 65 USER 6 41H

Page 47

Write Transition Mode (CA) Command

The Write Transition Mode command sets up the Ònext transitionÓ that will occur when any transition for that level is expected (via panel or editor command) is sent.

Table 3-15. Write Transition Mode Command

Write Transition Mode (CA) Command

Function

Write Transition Mode 03 EX CA (Write) Mode

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the Write Transition Mode command are:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System 01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System 04 Downstream Keyer (DSK)

For this command, writing to the PGM-PST or the DSK has exactly the same effect.

Mode Byte

The format of the Write Transition Mode byte is as follows for an M/E:

Bit Bit

7 6 5 4 3 2 1 0

0 0 0 X X X X X

1 = KEY 2 on 1 = KEY 1 on 1 = BKGD A on 1 = BKGD B on in layered mode 1 = Key Priority On

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Page 48

Section 3 Ð Editor Interface Commands

For PGM-PST/DSK the format of the Write Transition Mode byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

0 0 0 X X X X X

After BKGD is set to ON, the next transition will occur on the PGM-PST bus.

1 = DSK 2 on 1 = DSK 1 on 1 = BKGD on (or PGM on for 4000-2A) 1 = PST on for 4000-2A in layered mode 1 = Key Priority On

NOTE:

Do not issue this command more than once per video field. If you do, the

last command sent will be the one executed.

3-24

Page 49

Write Transition Rate Commands

The Write Transition Rate commands set the rates used by the switcher to perform a transition. They can also cause a transition to take place by setting the Òexecute bit.Ó The Ònext transitionÓ which will occur should have been previously selected, either manually at the panel or by sending a Write Transition Mode command.

Three transition rates may be set in the switcher:

¥ Auto transition rate ¥ Key 1 transition rate ¥ Key 2 transition rate

Which rate is used depends on:

¥ The switcher model ¥ The Ònext transitionÓ which has been selected ¥ The effects address

Model 3000-2 and 4000-2B

Write Transition Rate Commands

M/E1, M/E2, M/E3

The auto transition rate is always used.

PGM-PST/DSK

The transition rate depends on the state of the Ònext transition.Ó If the next transition is set only to BKGD, then the auto transition rate is used. If the next transition is set to DSK 1, DSK 2, or both, then the Key 1 transition rate is used. If BKGD and KEY 1 or KEY 2 is selected, then the BKGD (PGM-PST) transition has precedence over the DSK transition and the auto transition rate is used.

Model 2200-2

The auto transition rate is always used.

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Page 50

Section 3 Ð Editor Interface Commands

Model 3000-3 and 4000-2A

M/E1, M/E2, (and M/E3 on 3000-3)

The transition rate depends on the state of the Ònext transition.Ó If the next transition is set only to BKGD A (or BKGD B on a 4000-2A in layered mode), then the auto transition rate is used. If the next transition is set to KEY 1, then the Key 1 transition rate is used. If the next transition is set to KEY 2, then the Key 2 transition rate is used. If a combination of BKGD, KEY 1 and KEY 2 is selected, then the order of precedence is BKGD (auto transition rate), KEY 1 (Key 1 rate), KEY 2 (Key 2 rate).

PGM-PST/DSK

Setting the transition rate is very similar to that for an M/E. If the next transition is set only to PGM (or PST on a 4000-2A in layered mode), then the auto transition rate is used. If the next transition is set to DSK 1, then the Key 1 transition rate is used. If the next transition is set to DSK 2, then the Key 2 transition rate is used. If a combination of PGM-PST, DSK 1 and DSK is selected, then the order of precedence is PGM-PST (auto transition rate), DSK 1 (Key 1 rate), DSK 2 (Key 2 rate).

NOTE:

4000-2B and 2200-2 in that Key 1 and Key 2 transition rates may be set. If the editor does not want to distinguish between Models, then it would be effective to always set the Key 1 and Key 2 rates in a Write Auto Transition Rate command.

Transition Rates

Transition rates are speciÞed in numbers of frames.

To translate a transition rate in seconds to number of frames, use the following formulae:

For NTSC:

Frame Rate = (transition time in seconds) x (30 frames/second)

For PAL:

Frame Rate = (transition time in seconds) x (25 frames/second)

As an example, take the case of a four (4) second AUTO TRAN. In such a case, the frame rate (NTSC) is 120 frames (4 seconds * 30 frames/second = 120 frames). For the PAL standard, substitute 25 frames, giving 100 frames.

The 4000-2A and the 3000-3 have more functionality than the 3000-2,

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Page 51

Write Auto Transition Rate (CC) Command

The Write Auto Transition Rate command is primarily intended to set the auto transition rate but can also set the Key 1 and Key 2 transition rates. If the execute bit is set, the auto transition will be performed.

Table 3-16. Write Auto Transition Rate Command

Function

Write Auto Transition Rate 05 EX CC (Write) HD TN UN

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid effects addresses for the Write Auto Transition Rate commands are:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System 01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System 04 Downstream Keyer (DSK)

Writing to Effects Addresses 00 (PGM-PST) and 04 (DSK) have the same effect; either can be used for this command.

Transition Rate

The command speciÞes the auto transition rate in terms of frames, ranging from 000 to 999. Specify the auto transition rate in the command by supplying three data bytes:

¥ HD Ñ The hundreds digit in BCD. The MSB is the ÒexecuteÓ bit. ¥ TN Ñ The tens digit in BCD. ¥ UN Ñ The units digit in BCD. The two MSBs are control bits to select Key

1 and Key 2 rates in addition to the auto transition rate.

1. Not supported in Version 5.0 and earlier

2. For Version 5.0 and earlier, writing to address 04 (DSK) was not supported

3. For Version 5.0 and earlier, using the two MSBs to control KEY 1 and KEY 2 rates was not supported.

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Section 3 Ð Editor Interface Commands

The format of the HD byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

X 0 0 0 X X X X

The format of the TN byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

0 0 0 0 X X X X

Rate value of 0 through 9 in BCD (0000 to 1001)

do not

0 = Set rate only, 1 = Set rate and perform the auto transition.

Rate value of 0 through 9 in BCD (0000 to 1001)

perform the transition.

The format of the UN byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

X X 0 0 X X X X

Rate value of 0 through 9 in BCD (0000 to 1001) 1 = Set Key 1 rate also (1)

1 = Set Key 2 rate also (1)

(1) Not supported in Version 5.0 and earlier.

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Write Key Transition Rate (CD) Command

The Write Key Transition Rate command sets the Key 1 and Key 2 transition rates. If the execute bit is set, then an auto transition is performed also.

By default, both Key 1 and Key 2 rates are set1. However, the command can be used to set either Key 1 or Key 2 rates independently on switcher models which support this.

Table 3-17. Write Key Transition Rate Command

Write Key Transition Rate (CD) Command

Function

Write Key Transition Rate 05 EX CD (Write) HD TN UN

Byte

Count

Effects

Address

Command

Code

Effects Addresses

Valid Effects Addresses for the Write Key Transition Rate commands are:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System 01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System 04 Downstream Keyer (DSK)

Writing to Effects Addresses 00 (PGM-PST) and 04 (DSK) have the same effect; either can be used for this command.

Transition Rate

The command speciÞes the Key 1 and Key 2 rate in terms of frames, ranging from 000 to 999. Specify the transition rate in the command by supplying three data bytes:

Message

¥ HD Ñ The hundreds digit in BCD. The MSB is the ÒexecuteÓ bit. ¥ TN Ñ The tens digit in BCD. ¥ UN Ñ The units digit in BCD. The two MSBs are control bits used to select

only Key 1 or Key 2 rates rather than both.

1. Prior to Version 5.1, only the Key 1 rate was set by default, and it worked only for PGM-PST, not for the M/Es. The Key 2 rate was not set.

2. Not supported in Version 5.0 and earlier.

3. In Version 5.0 and earlier, writing to address 00 (PGM-PST) was not supported.

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Section 3 Ð Editor Interface Commands

The format of the HD byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

X 0 0 0 X X X X

The format of the TN byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

0 0 0 0 X X X X

Rate value of 0 through 9 in BCD (0000 to 1001)

do not

0 = Set rate only, 1 = Set rate and perform the auto transition.

Rate value of 0 through 9 in BCD (0000 to 1001)

perform the transition.

The format of the UN byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

X X 0 0 X X X X

Rate value of 0 through 9 in BCD (0000 to 1001) 1 = Set Key 1 rate only (1)

1 = Set Key 2 rate only (1)

(1) Not supported in Version 5.0 and earlier

If bit 6 (set Key 1 rate only) and bit 7 (set Key 2 rate only) are both zero, then both the Key 1 and Key 2 rates will be set by the command.

If bits 6 and 7 are both set to 1, then only Key 1 rate will be set.

1. Only Key 1 rate set in Version 5.0 and earlier.

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Write Recall E-MEM Register (DB) Command

Recall E-MEM is a write-only command. When sent, the command causes the state data in the speciÞed E-MEM (Effects Memory) register to be recalled, thus changing the current state of the switcher to the stored settings for the given effects addresses. This command performs the same action as manually recalling an E-MEM register number of 0 through 99.

Control bits may be set to force or inhibit the recall of the register as an effects dissolve. Additionally, control bits may be used to force or inhibit the running of an effect which contains multiple keyframes, and the recall of learned enables prior to the recall of the register.

NOTE:

Do not send this command more than once per video frame. Also note that a new recall command received by the switcher will override any recall that is still in progress for an effects address.

Table 3-18. Recall E-MEM Register Command

Function

Recall E-MEM Register 04

(1) Not supported in Version 5.0 and earlier

Byte Count

Effects Addresses

Prior to Version 5.1, when an individual Effects Address was speciÞed, the switcher disabled all but the selected E-MEM level on the panel. With Version 5.1 and later, that no longer happens. Instead, the panel is left in its current state.

Effects Address

EX FF

Command Code

DB (Recall) DB (Recall)

Message

Mode, Effects Number Mode, Effects Number, 2-byte BitMask (1)

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Section 3 Ð Editor Interface Commands

Valid Effects Addresses for the Recall E-MEM to Switcher command are:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System 01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System 04 Downstream Keyer (DSK) 05 Background (BKGD) 06 Miscellaneous 07 DPM 1 08 DPM 2 09 DPM 3 0A DPM 4 0B All enabled levels FF All specified levels

Mode Byte

NOTE:

Must specify 0B effects address when recalling a 300 Style Master

E-MEM effect.

The editor may recall a speciÞc Effects Address or may recall all levels currently enabled on the control panel. If the Effects Address is FF then the levels to be recalled are speciÞed in a 2-byte Bit-Mask

The Mode byte allows an E-MEM recall with Effects Dissolve, Auto Recall, and Run, either separately or together. The Mode byte takes precedence over the Switcher button tallies. The mode byte looks at three operations:

¥ Force the Auto Run/Auto Recall/Effects Dissolve operation ¥ Inhibit the Auto Run/Auto Recall/Effects Dissolve operation ¥ Operate according to current Switcher panel settings

1. Not supported in Version 5.0 and earlier

2. In Version 5.0 and earlier, the value of the mode byte was ignored and treated as though all bits were zero. That is to say, the E-MEM Register will be recalled and the action performed will be according to what was learned into the E-MEM Register and the current panel state.

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Write Recall E-MEM Register (DB) Command

The format of the Mode byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

0 X X X 0 X X X

Effects Dissolve, Auto Recall, and Run each have a Force bit and an Inhibit bit. If the Force bit is on, the action is performed irrespective of the state of the switcher. If the Inhibit bit is on, the action is not performed, irrespective of the state of the switcher. If both bits are off, then the action is performed according to the switcher state, that is, what has been recalled from E-MEM, modiÞed by the current state of the panel.

FORCE INHIBIT ACTION

1 0 Perform action 0 1 Inhibit Action 0 0 Act according to panel state and register contents 1 1 Invalid

1 = Recall E-MEM Register and Inhibit Auto Recall 1 = Recall E-MEM Register and Inhibit a Run 1 = Recall E-MEM Register and Inhibit Effects Dissolve 1 = Recall E-MEM Register and Force Auto Recall 1 = Recall E-MEM Register and Force a Run 1 = Recall E-MEM Register and Force Effects Dissolve

Setting Bit 5 to one recalls an E-MEM register and runs any keyframes stored in that register. This has the same effect as pushing the AUTO RUN pushbutton and then recalling an E-MEM register from the control panel. Setting Bit 1 to one recalls an E-MEM which does not run, irrespective of the state of the AUTO RUN button. If both Bits 5 and 1 are set to zero, then the E-MEM is recalled and will run only if the AUTO RUN button is on.

Setting Bit 6 to one recalls an Effects Dissolve into an E-MEM register. This has the same effect as pushing the EFF DIS pushbutton and then recalling an E-MEM register from the control panel. Setting Bit 2 prevents the Effects dissolve from taking place irrespective of whether the effect was learned with Effects Dissolve on, or the Effects Dissolve button was pressed prior to sending the Recall E-MEM command. If both Bits 6 and 2 are zero, then the Effects Dissolve will occur if the effect was learned with Effects Dissolve on, or if the Effects Dissolve button is on (has just been pressed).

Auto Recall is controlled by the bits in the same manner as Auto Run, described above.

It is possible to combine Force bits to automatically run a register starting with an effects dissolve after the enabled levels have been recalled.

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Section 3 Ð Editor Interface Commands

Registers

Valid E-MEM registers are 00H through 63H (0Ð99 decimal).

The format of the Effects Register Number byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0 0 X X X X X X X

1 = Effects Register 00H– 63H

Bit-Mask Format

The two-byte bit mask allows the editor to specify any combination of effects addresses 00 through 0A. The LSB (bit 0) represents the Þrst address, and bit 10 represents the DPM 4 address. The top 5 bits are Òdon't care.Ó

Bit Bit

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

PGM-PST Mix System Mix/Effects 1 System Mix/Effects 2 System Mix/Effects 3 System Downstream Keyer (DSK) Background (BKGD) Miscellaneous (MISC) DPM 1 DPM 2 DPM 3 DPM 4

1. Not supported in Version 5.0 and earlier.

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Write Learn E-MEM Register (DA) Command

The Learn E-MEM Register command is a write-only command that causes the Effects Address state data in the speciÞed E-MEM register to be stored or ÒlearnedÓ into the E-MEM register speciÞed in the Mode byte. This command has the same effect as manually pressing the LRN button and then selecting an E-MEM register number (0 through 99). The command also supports learning an Effects Dissolve into a register.

Table 3-19. Learn E-MEM Register Command

Function

Learn E-MEM Register 04

(1) Not supported in Version 5.0 and earlier

Byte Count

Effects Addresses

Valid Effects Addresses for the Learn E-MEM Register command are:

EFFECTS ADDRESS ASSIGNMENTS

Effects Address

EX FF

Command Code

DA (Learn) DA (Learn)

Message

Mode, Effects Number Mode, Effects Number, 2-byte Bit-Mask (1)

The editor may learn a speciÞc Effects Address or may learn all levels currently enabled on the control panel. If the Effects Address is FF then the levels to be learned are speciÞed in a 2-byte Bit-Mask.

1. Not supported in Version 5.0 and earlier

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Section 3 Ð Editor Interface Commands

Mode Byte

The Mode byte allows an E-MEM learn with Effects Dissolve.The format of the Mode byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0 X 0 X X X X X X

1 = Learn with Effects Dissolve

Registers

Setting Bit 6 to one causes an Effects Dissolve to automatically occur when the speciÞed E-MEM register is recalled.

Valid E-MEM registers are 00 through 99 (00HÐ63H).

The format of the Effects Register Number byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0 0 X X X X X X X

1 = Effects Register 00H– 63H

1. Not supported in Version 5.0 and earlier.

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Write Learn E-MEM Register (DA) Command

Bit-Mask Format

Bit Bit

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

PGM-PST Mix System Mix/Effects 1 System Mix/Effects 2 System Mix/Effects 3 System Downstream Keyer (DSK) Background (BKGD) Miscellaneous (MISC) DPM 1 DPM 2 DPM 3 DPM 4

1. Not supported in Version 5.0 and earlier.

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Section 3 Ð Editor Interface Commands

Write Split Key (E4) Command

This command allows an editor to use the Split Key feature of the Model 2200, 3000, or 4000 Switcher. There are two modes for selecting the key source: Auto Select mode uses the key source assigned to the selected Þll crosspoint. Video Select mode uses the selected Þll video as the key source.

Table 3-20. Write Split Key Commands

Function

M/E 1 A BKGD 04 01 E4 (Write) Fill CP#, Key CP# M/E 2 A BKGD 04 02 E4 (Write) Fill CP#, Key CP# M/E 3 A BKGD 04 03 E4 (Write) Fill CP#, Key CP# DSK 1 04 04 E4 (Write) Fill CP#, Key CP# DPM 1 04 07 E4 (Write) Fill CP#, Key CP# DPM 2 04 08 E4 (Write) Fill CP#, Key CP# DPM 3 04 09 E4 (Write) Fill CP#, Key CP# DPM 4 04 0A E4 (Write) Fill CP#, Key CP# M/E 1 A BKGD 04 01 E5 (Write) Fill CP#, Key CP# M/E 2 B BKGD 04 02 E5 (Write) Fill CP#, Key CP# M/E 3 B BKGD 04 03 E5 (Write) Fill CP#, Key CP# DSK 2 04 04 E5 (Write) Fill CP#, Key CP# M/E 1 KEY 1 04 01 E6 (Write) Fill CP#, Key CP# M/E 2 KEY 1 04 02 E6 (Write) Fill CP#, Key CP#

Byte Count

Effects Address

Command Code

Message

3-38

M/E 3 KEY 1 04 03 E6 (Write) Fill CP#, Key CP# M/E 1 KEY 2 04 01 E7 (Write) Fill CP#, Key CP# M/E 2 KEY 2 04 02 E7 (Write) Fill CP#, Key CP# M/E 3 KEY 2 04 03 E7 (Write) Fill CP#, Key CP#

When the Mix/Effects section is in layered mode, you can use the Write split Key command on KEY 1, KEY 2, BKGD A, and BKGD B.

When the Mix/Effects is in standard mode, you can use the Write Split Key command on KEY 1 and KEY 2.

You can use the Write Split Key command on DSK 1 and DSK 2 of the DSK section.

Effects Addresses

Valid Effects Addresses for the Split Key command are as follows:

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EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System 01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System 04 Downstream Keyer (DSK) 07 DPM 1 08 DPM 2 09 DPM 3 0A DPM 4

Crosspoint Numbers

Valid crosspoints for this command are shown in the following table:

Table 3-21. Split Key Command Crosspoints

Address Description

Write Split Key (E4) Command

01H–30H = Normal Crosspoints 1 to 48 M/E 1, 2, 3 and DSK 31H = M/E 1 M/E 2 and M/E 3 and DSK 32H = M/E 2 M/E 1 and M/E 3 and DSK 33H = M/E 3 M/E 1 and M/E 2 and DSK

The Þll crosspoint is a valid crosspoint in hex.

The format of the Key Crosspoint byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

A/V 0 X X X X X X

Valid Crosspoint (00H to 34H) 0 =

Auto Select

1 =

Video Select

Mode

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Section 3 Ð Editor Interface Commands

Select “Layered” Or “Standard” (E8) Command

Using this command, an editor can select for each Mix/Effects section either the Standard or Layered mode of operation.

Table 3-22. Select ÒLayeredÓ or ÒStandardÓ Command

Function

Layered or Standard Mode 03 EX E8 (Write) Mode byte

Byte Count

Effects Address

Command Code

Message

Effects Addresses

Valid Effects Addresses for the Select Layered/Standard command are as follows:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System (Model 4000-2A only) 01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System

Mode Byte

The format of the Mode byte is as follows:

Bit Bit

7 6 5 4 3 2 1 0

S/L 0 0 0 0 0 0 0

3-40

0 = Standard Mode 1 = Layered Mode

Page 65

Data Transfer (5E and DE) Commands

There are two types of data that may be transferredÑswitcher E-MEM data and switcher conÞguration data. The type of data is determined by use of the appropriate effects address (see below).

From the perspective of the editor, there are two types of data transferÑ reads and writes. For example, an editor may read the contents of a speciÞed E-MEM register from a switcher. At a later time the editor may write the contents of a speciÞed E-MEM register back to the switcher. The switcher then stores this data back into the speciÞed E-MEM register.

Two message types are used to perform data transfersÑthe Request data command and the Sending data message.

Table 3-23. Data Transfer Messages

Data Transfer (5E and DE) Commands

Byte

Function

Request data 05 EX 5E Sequence Number (2 bytes),

Sending data 06H

Cou

to FFH

Effects

Address

EX DE Sequence Number (2 bytes),

Command

Code

Message

Effects Addresses

Valid Effects Addresses for data Transfers are as follows:

EFFECTS ADDRESS LEVELS

00 PGM-PST 01 Mix/Effects 1 02 Mix/Effects 2 03 Mix/Effects 3 04 Downstream Keyer (DSK) 05 Background (BKGD) 06 Miscellaneous (MISC) 07 DPM 1 08 DPM 2 09 DPM 3 0A DPM 4 0B All learned 1E Configuration

E-MEM levels

NOTE:

Effects Address 0B deals only with the E-MEM Levels that have data

learned into them, ignoring all currently enabled levels selected on the panel.

1. Not supported in Version 5.0 and earlier.

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Section 3 Ð Editor Interface Commands

Register Number

Valid register numbers are in the range of 00H to 63H (00 to 99 decimal) for EMEM data. When transferring conÞguration data, the register number is ignored.

Sequence Number

The Sequence Number is a two-byte value that always begins at 0 and increments to a maximum of FFFDH and is used to number successive packets of data. Please note the following:

¥ Each transfer must start with the sequence number reset to zero. ¥ A Sequence number of FFFEH indicates the end of the data ¥ A Sequence number of FFFFH will abort a data transfer.

Data

The length of data varies, depending on the Effects Address being used.

Taking a Snapshot of the Switcher

An editor request for effects address OBH tells the switcher to transfer all levels for that register. So to take a snapshot of the whole switcher:

¥ Enable all E-MEM levels ¥ Learn to Register x ¥ The editor sends a Request E-MEM Data message for Register x

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Transfer Command Examples

Data transfers occur as a dialog between the editor and the switcher. One side acts as the transmitter of the data and the other as the receiver.

An editor always initiates a transfer; it acts as either the transmitter or the receiver of data depending on the direction of the transfer. A dialog proceeds as the transmitter and receiver send messages back and forth to each other requesting and sending data. Even though the editor always initiates the transfer, it is the receiver that is in charge of pacing the transfer because it speciÞes the sequence number of the next packet it expects the transmitter to send in the request message. So if the receiver detects an error it can abort the transfer, or ask for a retry by repeating a request for the same sequence number again. (See Error Detection and Handling, later in this section).

The following examples show scenarios of editor-to-switcher command dialogue that demonstrates how the Transfer commands work.

Scenario 1

The editor is going to read Register Number 33 (21H) from Mix/Effects 1. The editor is the receiver of the E-MEM data. The register it is going to receive contains 1450 bytes of data. The following dialogue is the result:

Data Transfer (5E and DE) Commands

1. The editor sends a request to the switcher:

Byte Count

05 01 5EH 00H 00H 21H none

Byte Count

FFH 01 DEH 00H 00H 21H 250 Bytes of E-MEM data

Byte Count

05 01 5EH 00H 01H 21H none

Effects Address

Command Code

2. The switcher sends the first block of 250 bytes of data to the editor:

Command Code

3. The editor sends a request for the next block to the switcher:

Command Code

4. The switcher sends another 250 bytes of data to the editor:

Sequence Number

E-MEM Data

Byte Count

FFH 01 DEH 00H 01H 21H 250 bytes of E-MEM data

Effects Address

Command Code

Sequence Number

E-MEM Data

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Section 3 Ð Editor Interface Commands

5. The editor sends a request for the next block to the switcher:

Byte Count

05 01 5EH 00H 02H 21H none

Effects Address

Command Code

Sequence Number

E-MEM Data

6. The switcher sends another 250 bytes of data to the editor:

Byte Count

FFH 01 DEH 00H 02H 21H 250 Bytes of E-MEM data

Effects Address

Command Code

Sequence Number

E-MEM Data

7. The editor sends a request for the next block to the switcher:

Byte Count

05 01 5EH 00H 03H 21H none

Effects Address

Command Code

Sequence Number

E-MEM Data

8. The switcher sends another 250 bytes of data to the editor:

Byte Count

Effects Address

Command Code

Sequence Number

E-MEM Data

FFH 01 DEH 00H 03H 21H 250 bytes of E-MEM data

9. The editor sends a request for the next block to the switcher:

Byte Count

05 01 5EH 00H 04H 21H none

Effects Address

Command Code

Sequence Number

E-MEM Data

10. The switcher sends another 250 bytes of data to the editor:

Byte Count

FFH 01 DEH 00H 04H 21H 250 bytes of E-MEM data

Effects Address

Command Code

Sequence Number

E-MEM Data

11. The editor sends a request for the next block to the switcher:

Byte Count

05 01 5EH 00H 05H 21H none

Effects Address

Command Code

Sequence Number

E-MEM Data

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Data Transfer (5E and DE) Commands

12. The switcher sends the last 200 bytes of data to the editor and indicates that this is the last block by sending sequence number FFFEH:

Byte Count

CDH 01 DEH FFH FEH 21H 200 bytes of E-MEM data

Effects Address

Command Code

Sequence Number

E-MEM Data

The transfer is now complete.

Scenario 2

The editor is going to write Register Number 33 (21H) to Mix Effects 1. Note that this time the editor is the transmitter of E-MEM data. The switcher is the receiver and so it controls the transfer by specifying the sequence number of the next block for the editor to send. To shorten the example, a register size of 635 bytes will be used. The following dialogue is the result:

1. The editor sends the first block of data to the switcher:

Byte Count

FFH 01 DEH 00H 00H 21H 250 bytes of E-MEM data

Effects Address

Command Code

Sequence Number

E-MEM Data

2. The switcher requests the next block of data and supplies the sequence number of this next data block to be sent. Implicitly this acknowledges receipt of the previous block.

Byte Count

05 01 5EH 00H 01H 21H none

Effects Address

Command Code

Sequence Number

E-MEM Data

3. The editor sends the next block of data to the switcher:

Byte Count

FFH 01 DEH 00H 01H 21H 250 bytes of E-MEM data

Effects Address

Command Code

Sequence Number

E-MEM Data

4. The switcher requests the next block of data and supplies the sequence number of this next data block to be sent:

Byte Count

05 01 5EH 00H 02H 21H none

Effects Address

Command Code

Sequence Number

E-MEM Data

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Section 3 Ð Editor Interface Commands

5. The editor sends the final block to the switcher:

Byte Count

8C 01 DEH FFH FEH 21H 135 bytes of E-MEM data

Byte Count

05 01 DEH FFH FEH 21H none

Effects Address

Command Code

6. The switcher sends a final request message to the editor, acknowledging receipt of the last block and ending the transfer:

Command Code

Sequence Number

E-MEM Data

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Error Detection and Handling

When an error of any sort is detected during a transfer, appropriate actions are to retry the last action or abort the transfer.

Only a receiver can request a retry, and it does so by sending a request to transfer a packet with the same sequence number as the last packet. If in the above example the switcher were to request a retry of sequence number 1 (after message number 3), the switcher would simply send a message to the editor asking for sequence number 1 rather than 2 as message number 4. However, the Editor or the Switcher as a Receiver will not ask for a retry after the last packet. In either case, the Switcher considers the last packet as a completion of the transfer.

The following is an example of a transfer containing an error that is detected while the switcher is receiving data. Again, a register size of 635 bytes is used:

1. The editor sends a Transfer Write command to the switcher and the first block of data:

Data Transfer (5E and DE) Commands

Byte Count

FFH 01 DEH 00H 00H 21H 250 bytes of E-MEM data

Byte Count

05 01 5EH 00H 01H 21H none

Byte Count

FFH 01 DEH 00H 01H 21H 250 bytes of E-MEM data

Effects Address

Command Code

2. The switcher requests the next block of data and supplies the sequence number of this next data block to be sent. Implicitly this acknowledges receipt of the previous block:

Command Code

3. The editor sends the next block of data to the switcher:

Command Code

At this point, the switcher detects an error and attempts a retry:

4. The switcher sends a request with the same sequence number to the editor:

Sequence Number

E-MEM Data

Byte Count

05 01 5EH 00H 01H 21H none

Effects Address

Command Code

Sequence Number

E-MEM Data

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Section 3 Ð Editor Interface Commands

5. The editor re-sends a block of 250 bytes to the switcher:

Byte Count

FFH 01 DEH 00H 01H 21H 250 bytes of E-MEM data

Byte Count

05 01 5EH 00H 02H 21H none

Byte Count

8C 01 DEH FFH FEH 21H 135 bytes of E-MEM data

Byte Count

Effects Address

Command Code

6. The switcher sends a request for next block to the editor:

Command Code

7. The editor sends the final block to the switcher:

Command Code

8. The switcher sends a final request message to the editor, acknowledging receipt of the last block and ending the transfer:

Command Code

Sequence Number

E-MEM Data

05 01 DEH FFH FEH 21H none

NOTE:

It is not possible for the editor or the switcher to request a re-send of the

last block.

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Data Transfer (5E and DE) Commands

If the receiver has requested a retry several times and there is still an error, or there is some other unrecoverable error, then the transfer may be terminated by sending an abort message. Although only the receiver can request a retry, either the transmitter or receiver can send an abort message at any time during a transfer, if an error is detected.

The format of the abort message is as follows:

Byte Count

06H EX DEH FFH FFH nnH abort code (1 byte)

Effects Address

Command Code

Sequence Number

E-MEM Data

Switcher-supplied abort codes are:

ABORT CODE MEANING

01 Request for an E-MEM register which is empty 02 Invalid sequence number received 03 Internal communication error 04 Bad file header 05 Bad Master E-MEM header 06 Bad individual E-MEM header 07 Bad Keyframe data 08 Invalid byte count 09 (reserved) 0A Invalid Register number 0B Invalid Effects Address

When the editor transfers data to the switcher, the editor should check the ÒStatus RepliesÓ returned by the switcher for the presence of any errors.

If the editor needs to terminate a transfer and it sends an abort message, then the switcher will acknowledge receipt of this abort message by returning an abort message also, with an abort code of 80H. This will indicate the end of the transfer.

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Section 3 Ð Editor Interface Commands

Software Version (6C and EC) Commands

The switcher will respond with a Software Version Response message on receipt of a Read Software Version command. The response will be returned two Þelds after the request is received.

Table 3-24. Software Version Command

Function

Read Software Version 02 EX 6C none Software Version Response 07 EX EC Model number, Major Version

Byte

Count

Effects

Address

Command

Code

Message

number, Minor Version number, First Fix level, Second Fix Level

Effects Addresses

Valid Effects Addresses for the Software Version command are as follows:

EFFECTS ADDRESS ASSIGNMENTS

00 PGM-PST Mix System

Model Number

Model numbers are as follows:

MODEL NUMBER MEANING

01 3000-2 02 3000-3 03 4000-2A 04 4000-2B 05 4000-3 06 2200-2 07 2200-2i

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Version Number

The software Version number comprises a Major Version number, a Minor Version number, and two Þx-level parameters. The Major Version and Minor Version are each represented as a two-byte ASCII character, and the two Þx-level parameters are each represented as a one-byte ASCII character.

For example: Version 4.1a would be represented as: 30H 34H 30H 31H 61H 20H.

Version 5.0B1 would be represented as: 30H 35H 30H 30H 42H 31H.

Switcher Model Features

The following is a brief summary of the features associated with the various switcher models.

Table 3-25. Switcher Models

Software Version (6C and EC) Commands

Number of

Model

3000-2 16 2 YES Composite 3000-3 24 3 YES Composite 4000-2B 16 2 YES Component 4000-2A 24 2 YES Component, layered mode on

4000-3 24 3 YES Component 2200-2 16 2 NO Component 2200-2i 16 2 NO Component, Krystal control

Xpoint

buttons

Number

of M/Es

PGM-PST/

DSK

Other

DSK

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Section 3 Ð Editor Interface Commands

Timeline Control (4E, 4F, CE, and CF) Commands

The Timeline Control commands allow the editor to manipulate a speciÞed effectÕs timeline. The controlling device may read the current position, write a new position, or trim the current position by a speciÞed amount. All positions or trims are measured as a Þeld count. The switcherÕs response to the Read Timeline command is the Write Timeline command.

Table 3-26. Timeline Control Commands

Function

Read Timeline Time (1) 02 EX 4E None Set Timeline Time (2) 06

T rim Timeline Time (2) 06

Run Timeline (2) 06

(1) Response guaranteed for 2 ﬁelds. (2) Switcher latency applies.

Byte

Count

Effects

Address

EX FF

Command

Code

CE CE

CF CF

4F 4F

Effects Addresses

Valid Effects Addresses for the Timeline control commands are as follows:

EFFECTS ADDRESS ASSIGNMENTS

Message

4-byte write value write value + 2-byte bit-mask

4-byte trim value trim value + 2-byte bit-mask

4-byte speed value speed value + 2-byte bit-mask

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Bit-Mask Format

Bit Bit

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Timeline Control (4E, 4F, CE, and CF) Commands

PGM-PST Mix System Mix/Effects 1 System Mix/Effects 2 System Mix/Effects 3 System Downstream Keyer (DSK) Background (BKGD) Miscellaneous (MISC) DPM 1 DPM 2 DPM 3 DPM 4

Data Field Format

All time data (Þeld count) and speed data is speciÞed to be binary data in S15.16 format. The lower two bytes specify a fractional Þeld value. The topmost bit is the sign bit and the next 15 bits represent whole Þeld values.

Note the following examples:

+1 field ==> 00 01 00 00

Ð 1 field ==> FF FF 00 00

+1 (unity) speed ==> 00 01 00 00

Ð 1/2 speed ==> FF FF 80 00

Setting the Run Time for a speed of zero is the same as sending a STOP command.

The editor is allowed to write a negative Þeld count or to trim in a negative direction which results in a negative Þeld count. In either case the result is to display a negative timecode in the menu and position the video at the 1st keyframe. The video will remain at that position until one of the following occurs:

¥ The effect runs long enough for the field count to pass zero ¥ The editor successively trims the field count in a positive direction until

¥ The editor writes a positive, non-zero field count to the switcher

zero is passed

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Section 3 Ð Editor Interface Commands

Examples

Note the following examples:

08 0C CF FF FF 00 00 07 80 ==> Trim all DPM levels by Ð1 field.

08 0C CE 00 1E 00 00 00 0E ==> Set the 3 M/Es to 30 fields.

08 0C 4F 00 01 00 00 00 0E ==> Run the effects for all 3 M/Es.

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Introduction

Parameter-Based Command Set

This section details the addition of the Parameter-Based Command Set (PBCS), to the original switcher protocol. The PBCS consists of three commands (read, set and trim), which allows a remote controlling device the ability to query the current state of selected parameters, and to change those states as required.

Examples include:

■ Ask the switcher what the current crosspoint selection is on the Key 1

bus for M/E 2.

■ Query the E-MEM system for current register and enables status.

■ Query the Keyers for the current On Air and Next Transitions mode

status.

■ Query the conÞguration database for information about current system

setup parameters.

The initial implementation of PBCS occurs with the release of switcher software version 5.3 and contains a subset of the entire command set. Each description of a particular command that follows includes the software version in which that feature will be released.

NOTE:

implemented at this time.

Note that with software version 5.3, set and trim commands are not

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Section 4ÑParameter-Based Command Set

General Discussion of the Command Set

The command structure is based on the same model used throughout the standard protocol already released:

■ Byte Count

■ Effects Address

■ Command Code

■ Message

For the PBCS command set, the Message contains two additional address Þelds and a variable 1 to 4 bytes data Þeld (as required). The combination of the added address Þelds with the Effects Address produces a single address for the parameter being manipulated.

Function

Byte

Count

Effects

Address

Command

Code

Subsystem

Address

Base

System

Address

(2)

Data

(1 to 4)

Addressing

Read 05 EX 45 SX BX BX

Set 6 to 9 EX C5 SX BX BX 1 to 4

Trim 6 to 9 EX CB SX BX BX 1 to 4

The data Þeld for the Read command does not exist, therefore, a shorter command length is required. The response by the switcher to a Read command is a Set command.

The data Þeld for the Set and Trim commands varies from 1 to 4 bytes. The length of these commands varies to effect the size of the data Þeld.

The Effects and Subsystem addresses are 1 byte each, while the Base address is 2 bytes for a total of 4 bytes. These 4 bytes of addressing data are combined to form the parameter and its location within the switcher architecture.

Each speciÞc implementation of the command set, as described in this document, details the possible effects and subsystem addresses available to it, as well as the relevant base addresses needed to fulÞll the command's requirement. Not all possible addresses of each type can be combined with each other to form meaningful parameters.

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Timing and Latency

Any PBCS read command will return a PBCS set command four Þelds after the command is received. The switcher takes 2 Þelds to fetch the data and another two Þelds to transmit. This means that data received by the controlling device is always two Þelds old.

The latency for the PBCS set and trim commands follows the same speciÞcation as the original commands in this protocol. These will be executed in the 10

Crosspoint Control Command(s)

Crosspoint Query Command (V5.3)

This command allows the editor to query a speciÞc bus on the switcher as to the currently selected crosspoint. The response is a PBCS set command with one byte of data - the crosspoint selection.

Crosspoint Control Command(s)

Þeld after the command is received.

Addressing

Valid effects address for this command are as follows:

Effects Addresses Assignments

00 PGM-PST Mix System

01 Mix/Effects 1 System

02 Mix/Effects 2 System

03 Mix/Effects 3 System

There is only one possible subsystem address for this command:

Subsystem Address Assignments

00 Crosspoint Busses

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Section 4ÑParameter-Based Command Set

Valid base system addresses for this command are as follows:

Base System Addresses

00 01 PGM or A bus

00 02 PST or B bus

00 03 DSK1 or Key1

00 04 DSK2 or Key2

Assignments

Data

This data is represented as a 1 byte hex value.

The crosspoint #'s fall in the range of 1 to the maximum value based on the panel type (1 through 20 hex for a 16 source button switcher, and 1 through 30 hex for a 24 source button switcher), plus the re-entry crosspoints. Re-entry crosspoint numbers are the same for any switcher type:

Crosspoint # Re-entry Position

31 (hex) Mix Effects 1

32 Mix Effects 2

33 Mix Effects 3

Example

To Þnd out the currently selected crosspoint on the Key1 bus for M/E 2, send the following command:

05 02 45 00 00 03

The switcher returns:

07 02 c5 00 00 03 dd where dd is the crosspoint #

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Transition Parameter Control

Transition Query Command (V5.3)

This command allows the editor to query a speciÞc effects as to the state of its transition sub-panel. The response is a PBCS set command whose data is dependent on the parameter being asked for.

With this command the editor may determine:

■ If the speciÞed transition control is set to do a Mix or Wipe transition.

■ What the next transition will be for the speciÞed control; bkgd, key, or

any combination thereof.

■ If a key is currently On Air or not.

Addressing

Transition Parameter Control

Valid effects addresses for this command are as follows:

Effects Address Assignments

01 Mix/Effects 1 System

02 Mix/Effects 2 System

03 Mix/Effects 3 System

04 Downstream Keyer (DSK)

Valid subsystem addresses for this command:

Subsystem Address Assignments

01 Keyer Transition sub-system

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Section 4ÑParameter-Based Command Set

Valid base system addresses for this command are as follows:

Base System Addresses Assignments

03 00 Transition type (mix or wipe)

03 01 Transition mode

03 02 Key 1 On Air

03 03 Key 2 On Air

03 04 Bkgd A On Air

03 05 Bkgd B On Air

Data

Parameter T ype Data Length Data Type

Transition Type 1 Byte 0 = Mix

1 = Wipe

Transition Mode 1 Byte Bit Mask

On aire Stat 1 Byte 0 = No

1 = Yes

The one-byte Bit Mask uses 5 bits to describe the current state of the Transition Mode for the keyer speciÞed. The top 3 bits are unused and will always be set to zero.

The bit deÞnitions are identical to the mode byte implemented in the Write Transition Mode (CA) command described earlier in this document.

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Transition Parameter Control

The format of the Transition Mode byte is as follows for an M/E:

Bit Bit

7 6 5 4 3 2 1 0

0 0 0 X X X X X

1 = KEY 2 on 1 = KEY 1 on 1 = BKGD A on 1 = BKGD B on in layered mode 1 = Key Priority On

The format of the Transition Mode byte is as follows for the DSK:

Bit Bit

7 6 5 4 3 2 1 0

0 0 0 X X X X X

1 = DSK 2 on 1 = DSK 1 on 1 = BKGD on (or PGM on for 4000-2A) 1 = PST on for 4000-2A in layered mode 1 = Key Priority On

Examples

To Þnd out what the current transition type is for M/E 3, send the following command:

05 03 45 01 03 00

The switcher returns:

06 03 c5 01 03 00 00 if currently in Mix mode 06 03 c5 01 03 00 01 if currently in Wipe mode

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Section 4ÑParameter-Based Command Set

To Þnd out what the current transition mode is for the DSK, send the following command:

05 04 45 01 03 01

The switcher returns:

06 04 c5 01 03 01 xx where 'xx' is the bit mask set according to the current transition mode

For example, say the bit mask is 03. This says the next transition will

involve both keyers without changing the background.

To Þnd out if Key 1 is currently On Air for M/E 2, send the following command:

05 02 45 01 03 02

The switcher returns:

06 02 c5 01 03 02 xx where xx = 0 Key is Off Air or xx = 1 Key is On Air

E-MEM Parameter Control

E-MEM Query Commands (V5.3)

These commands allow the editor to answer the following questions:

■ What are all the currently enabled levels?

■ Is the speciÞed level currently enabled?

■ What register is currently associated with the speciÞed level?

Addressing

Valid effects addresses for these commands are as follows:

EFFECTS ADDRESS ASSIGNMENTS

4-8

00 PGM-PST Mix System 01 Mix/Effects 1 System 02 Mix/Effects 2 System 03 Mix/Effects 3 System 04 Downstream Keyer (DSK) 05 Background (BKGD) 06 Miscellaneous

Page 87

E-MEM Parameter Control

07 DPM 1 08 DPM 2 09 DPM 3 0a DPM 4 0b All Enabled Levels (enables control) – or –

Master Timeline (register control)

Valid sub-system addresses for these commands are as follows:

Subsystem Addresses Assignments

02 E-MEM sub-system

Valid base-system addresses for these commands are as follows:

Base System Addresses Assignments

02 00 Enables control

02 01 Register control

Data

Two byte data

Two bytes of data are returned when the base address is 02 00 (enables control) and the effects address is 0b (all enabled levels). This query is asking the switcher what are all the currently enabled levels. The data returned for this query is a 2 byte bit mask, with each of the lower 11 bits representing a distinct level. A bit ON means the associated level is ON. The top 5 bits will always be zero.

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Section 4ÑParameter-Based Command Set

This bit mask is identical to the format outlined with the Recall E-MEM Register (0xdb) command:

Bit Bit

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

PGM-PST Mix System Mix/Effects 1 System Mix/Effects 2 System Mix/Effects 3 System Downstream Keyer (DSK) Background (BKGD) Miscellaneous (MISC) DPM 1 DPM 2 DPM 3 DPM 4

Single byte data

Any query of the enables base-system for a specific individual level returns a single byte representing the ON/OFF state of that level.

0 = OFF

1 = ON

Any query of the registers base-system returns a single hex byte containing the current register number active for the requested level:

0 thru 0x63 (decimal 99)

If the effects address for this query is 0x0b, then the register number returned applies to the Master Timeline controller.

If there is NO current register associated with the requested level (Master Timeline included) then the returned value is 0xff. A typical occurrence of 'no current register' takes place right after a power-up or reset to the switcher.

Examples

To Þnd out if level BKGD is currently enabled, send the following command:

4-10

05 05 45 02 02 00

Page 89

E-MEM Parameter Control

The switcher responds with:

07 05 c5 02 02 00 00 00 if the BKGD level is NOT enabled.

07 05 c5 02 02 00 01 00 if the BKGD level IS currently enabled.

Suppose there are currently 3 levels enabled, M/EÕs 1 & 2, and DPM 4. Supply an effects address of 0x0b with the enable query command:

05 0b 45 02 02 00

And the switcher responds with:

07 0b c5 02 02 00 04 06

To Þnd out what the current register associated with the Master Timeline is, send the following command:

05 0b 45 02 02 01

The switcher responds with:

07 0b c5 02 02 01 rr 00 where ‘rr’ is the register number in the range of 0 to 0x63 – or – 0xff.

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Section 4ÑParameter-Based Command Set

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Digital Effects Interface

Introduction

This section describes the interface between the Model 2200, 3000, and 4000 Switchers (ÒswitcherÓ) and an external digital picture manipulator (ÒDPMÓ).

The interface supports effect recall and run (including the switcherÕs run lever arm), control of switcher aux busses by the DPM when used as input selectors, and on air tally involving the DPM.

More limited DPM control is also provided via GPIs or the peripheral bus protocol. These interfaces are not covered in this section

General Background about Switcher/DPM Integration

The switcher/DPM integration involves the following functions:

¥ Effects on both the switcher and the DPM can be triggered and run under user

control from the switcher panel. The DPM effect number can be any number in the range of DPM effects, and the number (not the effect itself) is stored in the switcherÕs E-MEM register when a LEARN operation is done at the switcher. When a register is recalled at the switcher, this effect number will be sent to the DPM for effect recall.

¥ DPM source selection can be provided by the switcher's aux buses. One aux

bus pair can be assigned to each DPM channel in a multi-channel configuration. Switcher aux busses support field accurate front/back source switching for the DPM.

NOTE:

Therefore this interface does not support front/back switching for nonplanar effects such as page turns.

Sources changes are synchronized to vertical interval by the switcher.

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Section 5 Ñ Digital Effects Interface

NOTE:

The switcher relies on the key half of an aux bus pair to be connected to the same transforming channel as its video half. This interface makes no provision for use of the key side of a switcherÕs aux bus to feed a second video channel. While basic functionality can be achieved in this mode, functions such as effects send, front/back switching and tally will not function properly. Tektronix accepts no responsibility for interfaces which do not adhere to this constraint.

The term ÒTally,Ó as used here, means that the switcher can receive a message

from the DPM indicating whether the DPM is on-screen or not, and the switcher can use this information to tally sources feeding the DPM, providing proper panel and camera tally.

NOTE:

The DPM informs the switcher whether or not its image is on screen without regard to whether the DPM itself is on air. The switcher computes the onair tally based on the on/off screen information and whether or not the DPM output is on air.

Distinguishing between the terms ÒsourceÓ and ÒinputÓ: ÒSource mappingÓ

provides a level of indirection between the switcherÕs physical inputs and a source selection panel button. Input 20 could be mapped to button 1. ÒInputÓ would then refer to the physical entity, and ÒsourceÓ to the button and to what is stored as part of the switcherÕs effect.

Source information exchanged with the DPM is the logical ÒsourceÓ form of the information that is usedÑnot the physical input. The switcher translates this internally to a physical input.

NOTE:

The term ÒcrosspointÓ can be misleading, meaning both source and input at different times. In this documentation, the term crosspoint refers to the actual switching matrix used in routing signals.

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Switcher Configuration

In order for this interface to function as expected, the switcher must be conÞgured properly. DPM conÞguration details are covered in the normal switcher documentation. The following settings should be made prior to integration testing:

DPM Type

The switcher is capable of controlling several different types of devices. A selection is made in the CONFIG/EXT IF/DPM SETUP menu. The desired setting is currently labeled DVEOUS but may be changed to be more generic in a future switcher version.

The OTHER and NONE selections deactivate the interface port. OTHER is used for simple device control via GPIs or Peripherial Bus. NONE is used when no device is controlled, but aux bus assignment and effects send are needed.

KSCOPE, KRYSTAL and INTERNAL use an extended version of this protocol, primarily to support channel sharing. Use caution: the interface may appear to partially function with these settings.

Switcher Configuration

NOTE:

This protocol is only available for DEVICE 1.

Aux Bus Assignment

A number of aux busses must be assigned to the DPM in order for the switcher to provide source selection. This assignment is performed in the CONFIG/EXT IF/ DPM SETUP/MAP AUX BUSSES menu.

Input Mapping

The switcher relies on special input mapping for DPM signals returned to the switcher input. This mapping insures proper tally and effect send operation. Physical inputs are speciÞed for every video and key signal connected from the DPM to the switcher in the CONFIG/EXT IF/DPM SETUP/MAP INPUTS menu.

Then, one or more of the switcher sources is deÞned as a LOGICAL input and the appropriate device and channel is speciÞed. This is accomplished via the CONFIG/MAP INPUTS menu.

Channel 1 is handled differently than the others. The switcher assumes that channel 1Õs video actually contains the combined output of all channels in the system. The DPMÕs combiner output should feed an input conÞgured for channel

1. This assumption affects only on-air tally.

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Section 5 Ñ Digital Effects Interface

Effect Send and Control Delays

The effect send and control delays are adjustable in the CONFIG/EXT IF/DPM SETUP menu.

The control delay compensates for the time it takes for the DPM to respond to effect recall and effect position commands.

The best way to assess the control delay is to build a combined effect of the switcher and DPM, for example, and run them together while recording on a machine. The DPM setup control delay can be adjusted to provide the correct timing, and stored in the ConÞguration Þle.

The effect send delay compensates for the time it takes the DPM to respond to a channel in video input. Essentially, this is the video delay through the DPM, typically 2 Þelds. When an effects send is activated, the video to the DPM is switched immediately. To avoid a ßash at the output of the mix/effect bank, the M/E canÕt begin using the DPMÕs signal until the newly selected video has had time to arrive at the DPM output. The effect send delay should be adjusted so that going into effects send is clean at the output of the mix/effects bank involved in the effects send. The proper setting is the minimum setting which does not result in a ßash. Too long a delay will not be noticed, but will increase the time it takes for the M/E to actually switch to the DPM video.

Once the delay values have been determined, they should be published in the DPMÕs conÞguration documentation. The user may simply set the delays to those values.

Switcher Software

Switcher must be running standard software version 5.2 or later in order for the interface to function as described in this document.

DPM Enables

The switcher provices a selection for disabling the DPM interface. The DPM button in the EXTERNAL INTERFACE section of the control panel must be lit in order for the switcher to communicate with the DPM.

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General Protocol Notes

The protocol used for this interface is designed around setting values and receiving status (values). A subscription mechanism provides for status updates when changes occur providing more timely delivery of information without constant and frequent polling.

The interface is not designed as a pure master/slave relationship; both the switcher and DPM have responsibility for part of the communications and function more as peers: The switcher forwards source selection button presses to the DPM and orchestrates running effects; the DPM sends video, key, and front/ back information to the switcher to control aux busses.

This protocol is derived from one used for internal communications between the Grass Valley Krystalª Digital Picture Manipulator control panel and effect manager via an ethernet connection. Much of the message structure is to support communications between multiple panels and multiple effect managers but was retained for consistency. The Krystal panel to effect manager communications is not described in this document.

The format of messages is described in ÒMessage FormatÓ on page 5-11.

Message speciÞcs are described in ÒParametersÓ on page 5-19 and ÒOther Command SpeciÞcsÓ on page 5-21.

General Protocol Notes

Message Timing

Data communications speciÞcs are described in ÒTransmission Media and ProtocolsÓ on page 5-21.

Communications examples are contained in ÒExamplesÓ on page 5-22.

The timing of some messages is critical in order for the switcher and DPM to perform in lock step. These are considered real time messages.

The run control messages sent by the switcher to the DPM must be acted on in a Þxed number of video Þelds from when they are sent by the switcher. A delay adjustment is provided to compensate for variations in devices.

Source changes sent by the DPM to the switcher will be processed so that the video will change at the beginning of the next Þeld.

All other messages do not have a deterministic requirement and are processed differently within the switcher.

Transmission of real time messages should be given priority over the nondeterministic ones. The maximum packet size was choosen to allow for interleaving high priority messages when several low prioirty messages are awaiting transmission.

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Section 5 Ñ Digital Effects Interface

Init/Online

NOTE:

The last packet containing real time messages sent by the DPM in a field must complete transmission 3 milliseconds before the end of the field. (13.6 mS from the start of the Þeld for 525/60 or 22 mS for 625/50.) No real

time messages should be sent to the switcher during this end-of-Þeld period. Transmissions during this time can disturb critical processes within the switcher and cause the program video output of the switcher to glitch randomly.

This section describes the sequence used on start up communications. A DPM must respond and perform the indicated steps in order to achieve a reliable connection with the switcher.

If the Switcher is reset, or its DPM port conÞguration is changed:

1. The switcher sends out the message:

SEND_EVENT, EID_ONLINE (15)

This tells the DPM that the switcher just came on-line.

2. The DPM acknowledges this message with the RETURN_CODE message

echoing the return ID from the switcherÕs SEND_EVENT message:

val = OK (0). (The switcher ignores the return value.)

3. The switcher then requests the DPM system name (by subscribing to it):

SUBSCRIBE, IMMEDIATE, PID_SYSTEM_NAME

4. The DPM sends its name:

ISSUE, PARAMETER_ARTICLE, PID_SYSTEM_NAME

5. Once the switcher receives the system name message (can be any name text)

the switcher sends subscription messages for all of the parameters listed below Appendix B.

NOTE:

Other subscriptions may be solicited as well, but may be safely ignored. Their status is used only for Krystal and Kaleidoscope interfaces.

6. The DPM returns ISSUE messages containing the values for all of the

subscribed parameters. From then on, any changes to any of these parameters will result in new issue messages being sent to the switcher.

NOTE:

The switcher does not poll for changes. It relies on the subscriptions registered during initialization to provide it with timely updates to parametric changes.

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Source Selection

If the DPM is reset or its switcher interface is reconÞgured, the sequence is:

1. The DPM sends out the message:

SEND_EVENT, event EID_ONLINE

This tells the switcher that the DPM just came on-line.

2. The switcher acknowledges receiving the on-line message by sending the

RETURN_CODE message:

(the message headerÕs return ID is set to 0) val = EID_ONLINE (15).

then sends out a message cancelling all subscriptions:

UNSUBSCRIBE, CLEAR_SUBSCRIPTIONS

3. The switcher then takes over the initialization process with step 3 above.

There are multiple parts to the source selection part of the interface.

When the operator makes a selection on the aux row of the control panel (or via a remote aux panel), the switcher sends a message to the DPM with the video or key source, never both. The switcher relies on the DPM's use of source memory to select the appropriate key source. Essentially, the switcher is simply telling the DPM that an operator pressed a button. It is up to the DPM to process this information is an expected manner.

The switcher will send a selection for the front source, the back source or both depending on the near/far selection made from the switcherÕs AUX BUS menu.

The following SET commands communicate this information to the DPM. These messages include front/back information in the device ID Þeld. The channel bit is set in the upper 16 bits. The lower 16 bits indicate if the front or back side is being set (1 = back). These Þelds are deÞned as bit maps so that multiple channels may be set at onece. However in practice, a source set command applies to only one channel at a time.

PID_VIDEO_SOURCE

PID_KEY_SOURCE

NOTE:

The switcher does not make aux bus selections as a direct result of an aux row button press. If the DPM does not respond to the source message, the aux bus output and aux row lamp indication will not change.

As an independent mechanism, the DPM sends messages with the video and key sources, and the front/back status per channel. They are separate SET messages, with the content of these parameters:

PID_FRONT_VIDEO_SOURCE_LIST (for 8 channels)

PID_BACK_VIDEO_SOURCE_LIST

PID_FRONT_KEY_SOURCE_LIST

PID_BACK_KEY_SOURCE_LIST

PID_FRONT_BACK_SELECT_LIST

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Section 5 Ñ Digital Effects Interface

The DPM must send source information on changes. Sending at regular intervals (e.g., every-Þeld) is acceptable and can improve recovery should the link be interrupted.

Near/Far and Front/Back

The switcher differentiates between sides of a planar transform in two different, but related ways:

ÒFrontÓ is the side of the picture plane which would be visible if no rotation is applied to the transformation; ÒbackÓ is the opposite side.

ÒNearÓ is the side which is visible; ÒfarÓ is the side which is not visible.

When no rotation is applied, Near = Front and Far = Back.

Use of near and far allow the operator to change sources and insure the change is either seen (near) or not seen (far) regardless of the pictureÕs rotation amount.

In order for the switcher to sort out near and far, it must be provided with front/ back information from the DPM. Front/Back information tells the switcher which side is visible, that is, which is the near side.

Selections in the switcherÕs AUX BUS menu allow delegation of the aux selector row to either near or far or both. The row will change and display the selected side. If BOTH is selected, the near side is displayed and a selection will cause a change in both the front and back sides.

The AUX BUS menu displays both the DPMÕs front and back sources, the current aux selector row delegation (near/far) and which side the DPM has reported as the near side (front/back).

If the DPM does not fully implement the front and back source selection and front/back ßag, the switcher will not be able to properly resolve near/far. While the system will still function, the information displayed to the user may be incorrect.

Source Hold

On the switcher, holding down a source selection button overrides normal source selections as effects are recalled or run. Aux busses assigned to the DPM are actually controlled by the DPM, not the switcher and any hold down override must be handled by the DPM.

The switcher provides the DPM with the source button hold down indication via SET, PID_HOLD_INPUT_CROSS_PT.

The switcher also provides a user selection to prevent all source changes when an effect is recalled or run. This HOLD INPUT button affects all busses of the switcher, and in the case of Krystal also all channels of digital effects.

PID_HOLD_INPUT_OVERRIDE is used to communicate the global hold input state.

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Tally

The switcher subscribes for PID_VIDEO_ON_AIR and PID_KEY_ON_AIR information from the DPM. The DPM must compute whether a channelÕs image is on screen or not and update these subscriptions when necessary.

NOTE:

The parameter ID used for on screen information is the same as the one used to communicate on air information from the switcher to the DPM. This can easily lead to confusion since the same PID is used for different meanings.

In determining on/off screen, the following information should take into consideration:

¥ location relative to the output raster of the DPM (e.g., off screen) ¥ image size (e.g., reduced to zero size) ¥ rotation (e.g., exactly on edge) ¥ transparency ¥ any other processing or transform which may affect visibility

Additional factors include actual use of the incoming signal.

If the video signal is replaced by a matte Þll, its incoming video is not on screen.

If the key input is not used it is not on screen.

If instead, the video signal is used in a self key, then the video is on screen even if the video is a matte.

Other factors may exist depending on the functionality of the DPM.

In addition, the DPM may subscribe to the DPMÕs on air status. This information tells the DPM whether or not the switcher has the DPM video or key on air. The DPM should not incorporate this information in the on screen status it sends to the switcher.

Activity Check

The activity check provides a mechanism for the switcher to detect a link failure (disconnected cable, etc.) or a patching/routing a different DPM to the switcher.

The switcher periodically tests for link activity by sending out a Subscribe Immediate command for the DPMÕs ethernet address. If no response is received, the switcher notes the time-out. When a response is received after a timeout, the switcher assumes that subscription issues or other updates could have been missed and reestablishes communications as if the switcher had been reset.

If link activity is present, the switcher looks at the value returned from the DPM. If it is different than the last response, the switcher assumes a different DPM is now connected and reestablishes communications as if it had been reset.

The value which the DPM returns is unimportant. However, if multiple DPMs exist in a facility it is a good idea to report different values from each one to allow the switcher to detect a change in DPM connections.

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Section 5 Ñ Digital Effects Interface

The activity check is optional. The interface behaves normally even if the DPM never responds to the switcherÕs query. However, the switcher will not be able to recover from link failures, patching or routing without a reset from one of the two devices.

The switcher queries the DPM approximately every 20 seconds.

Running Effects

During initialization, the switcher subscribes for the DPMÕs current effect number. When a switcher effect is learned, the DPMÕs current effect number is stored as part of the effect.

When that effect is recalled at the switcher (DPM 1 level enabled), the switcher will send out a command to recall the DPM effect. (SET, PID_CURRENT_EFFECT).

At the time of the recall, the switcher also issues a SET, PID_EFFECT_POSITION. The time value sent is zero if REVERSE on the switcher E-MEM effect memory system is turned off; or to the ending time of the switcherÕs effect if REVERSE is on.

Subscription

As an effect is running, the switcher sends out commands every Þeld to the DPM to SET the effect position (PID_EFFECT_POSITION). This same mechanism supports runs via the RUN button as well as the switcherÕs run lever arm. Other time positioning controls on the switcher panel (PREV KF, NEXT KF, REWIND, etc. also result in the sending of a new effect position to the DPM. In this way, the DPM exactly follows the timeline of the switcherÕs effect.

Status information is gathered indirectly as a result of a ÒsubscriptionÓ request. The request tells the other device where to send changes to the speciÞed parameter. The changes are delivered to the requestor in an ÒissueÓ message which may contain several parameter ÒarticlesÓ. Many articles may be contained in one subscription. Consider a magazine subscription: The reader subscribes to the magazine and whenever new information is available, a new issue is delivered to the readers home. The reader does not have to speciÞcally request each new issue of the magazine. The Òsubscribe immediateÓ mechanism is like requesting a trial magazine issue - you only get one. Subscriptions may be canceled at any time. The requestor can also modify the terms of delivery at will.

The switcher subscribes to information using several request IDs. It is important for the DPM to include the proper request ID in the status update issue messages. Different parameter articles may be sent in the same issue as long as the subscriptions for all the data had the same request ID. Articles destined for different request IDs must be placed in separate issue messages.

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It is also important to limit issue messages to less than 256 bytes or the message will be discarded by the switcher.

Grass Valley 2200 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Introduction

General Description

Manual Contents

Editor Connectivity

Editor Port Jumpers

Model 3000

Communication Standard

Termination

Model 2200/4000

Communication Standard

Termination

Serial Data Word Description

Editor Enable Pushbutton

System Performance

Editor Protocol

Serial Communications

Editor Protocol Access

Break Character

Address Byte

Command/Message Block Structure

Byte Count

Effects Address Byte

Command Code Byte

Read Commands

Write Commands

Status and Data Replies

Error Detection

Transmission Errors

Protocol Errors

Introduction

Editor Interface Commands

Editor Interface Commands

Revision History

Application Examples

Example 1: Bringing the Editor Interface into a Ready State

Example 2: How to Set Crosspoint #6, A Row, Mix/Effects 2

ALL STOP (F2) Command (Version 5.1 and Later)

Effects Addresses

Crosspoint Bus (C1) Command (PGM/BKGD A/AUX)

Effects Addresses

Crosspoint Numbers

Crosspoint Bus (C2) Command (PST/BKGD B)

Effects Addresses

Crosspoint Numbers

Crosspoint Bus (C3) Command (KEY 1/DSK 1)

Effects Addresses

Crosspoint Numbers

Crosspoint Bus (C4) Command (KEY 2/DSK 2)

Effects Addresses

Crosspoint Numbers

Crosspoint Bus (E2) Command (PVW)

Effects Addresses

Crosspoint Numbers

Crosspoint Bus (E3) Command (MASK)

Effects Addresses

Crosspoint Numbers

Pushbutton Select and Control (C6, C7 and FB) Commands

Effects Addresses

Pushbutton Numbers

Write Wipe Pattern (C8) Command

Effects Addresses

Wipe Numbers

Write Transition Mode (CA) Command

Effects Addresses

Mode Byte

Write Transition Rate Commands

Model 3000-2 and 4000-2B

Model 2200-2

Model 3000-3 and 4000-2A

Transition Rates

Write Auto Transition Rate (CC) Command

Effects Addresses

Transition Rate

Write Key Transition Rate (CD) Command

Effects Addresses