WinSystems PCM-DSPIO, PCM-J1708 Operation Manual

OP ERA TIONS MAN UAL

PCM- DSPIO

PCM-J1708

Win Sys tems re serves the right to make changes in cir cuitry

© Copy right 1996 Win Sys tems®. All Rights Re served.

and speci fi ca tions at any time with out no tice.

WinSystems - "The Embedded Systems Authority"

RE VI SION HIS TORY

P/N 403- 0247- 000

ECO Num ber Date Code Re vi sion
ORIGI NATED 960508 A

98- 88 980826 A1
98- 105 981117 A2

TABLE OF CONTENTS

Section Paragraph Title Page

Visual Index – Quick Reference

1 General Information 1-1

1.1 Features 1-1

1.2 General Description 1-1

1.3 Specifications 1-2

2 PCM-DSPIO Technical Reference 2-1

2.1 Introduction 2-1

2.2 Serial I/O Address Selection 2-1

2.3 Serial Interrupt Selection 2-2

2.4 RS- 232 Mode Configuration 2-2

2.5 RS- 422 Mode Configuration 2-3

2.6 RS- 485 Mode Configuration 2-5

2.7 SAE J1708 Mode Configuration 2-7

2.8 Parallel Port I/O Address Selection 2-8

2.9 Parallel Port Direction Control 2-9

2.10 Parallel Port Interrupt Routing Selection 2-9

2.11 Parallel Port I/O Connector Pinout 2-9

2.12 PC/104 Bus Connectors 2-10

2.13 Connector/Jumper Summary 2-11

APPENDIX

Visual Index – Quick Reference

For the convenience of the user, a copy of the Visual Index has been provided with direct links to
connector and jumper configuration data.

J12

PC/104 16-BIT

BUS CONNECTOR

BUS CONNECTOR

J11

PC/104 8-BIT

PARALLEL PORT

I/O CONNECTOR

J4

J1

SERIAL I/O

CONNECTOR

PARALLEL PORT

BI-DIRECTIONAL MODE

CONTROL JUMPER

SELECTION JUMPER

J8

J9

SERIAL I/O MAP

J10

PARALLEL PORT

I/O ADDRESS

SELECTION JUMPER

INTERRUPT ROUTING

J7

981117 PCM-DSPIO/J1708 OPERATIONS MANUAL

CHANNEL 1 RS-485/J1708

J5, J6

CONFIGURATION JUMPER

CHANNEL 2 RS-485/J1708

J2 , J3

CONFIGURATION JUMPER

1 GENERAL INFORMATION

1.1 FEATURES

n PC/104 com pli ant dual se rial/par al lel I/O mod ule
n Two fully 16550 com pati ble async se rial chan nels
n A fully com pati ble Cen tron ics par al lel port
n 16- byte se rial trans mit/re ceive FIFO
n Full RS- 232 Mo dem con trol line sup port
n Pro gram ma ble Baud rates from 50 to 115,200 bps
n Four Jumper se lecta ble se rial I/O maps
n Two jumper se lecta ble Par al lel port ad dresses
n Sup ports op tional RS- 422, RS- 485, and SAE J1708 on both chan nels
n Dual mode bi- directional par al lel printer port
n +5 Volt only op era tion
n -40° to +85° C op er at ing tem pera ture range

1.2 GENERAL DESCRIPTION

The PCM- DSPIO is a small low- cost, add- on mod ule for PC/104 based sys tems that pro ­vides two PC com pati ble se rial ports and a PC com pati ble par al lel printer port. Both se rial
chan nels come stan dard sup port ing RS- 232 in clud ing all stan dard Mo dem con trol lines.
Ei ther or both chan nels can op tion ally be con fig ured for RS- 422 or RS- 485 in ter face lev e ls.
A fac tory con fig ured op tion al lows for sup port of SAE J1708 on both se rial chan nels. The
pro gram ma ble 16- byte trans mit and re ceive FI FOs al low for mul ti ple chan nels of high
speed se rial I/O with out ex ces sive proc es sor bot tle neck ing. The PC com pati ble par al lel
port can be used as a pri mary or sec on dary printer port or can be used for gen eral pur pose
digi tal I/O with its bi- directional ca pa bil ity.

981117 PCM-DSPIO/J1708 OPERATIONS MANUAL Page 1-1

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1.3 SPECIFICATIONS

1.3.1 Electrical

Bus In ter face : PC/104 8- Bit (op tional 16- bit con nec tor avail able for ex panded in ter rupt ca pa bil ity)
VCC : +5V +/-5% @ 90mA. typ. all chan nels RS- 232

120ma typ. all chan nels RS- 422

I/O Ad dress ing : PLD Con trolled I/O ad dress uses 10- bit ad dress. Each se rial chan nel re quires 8

con secu tive I/O port ad dresses.

Par al lel port re quires 4 con secu tive I/O port ad dresses.

1.3.2 Mechanical

Di men sions : 3.8" X 3.8" X 0.5"
PC Board : FR4 Ep oxy Glass, with 2 sig nal lay ers with screened com po nent leg end, and plated

through holes.
Jump ers : 0.025" square posts on 0.10" cen ters
Se rial I/O Con nec tor : 20 pin 0.10" grid RN type IDH- 20- LP
Par al lel I/O Con nec tor : 26 pin 0.10" grid RN type IDH- 26- LP

1.3.3 Environmental

Op er at ing Tem pera ture : -40° to +85°C
Non- Condensing Rela tive Hu mid ity : 5% to 95%

Page 1-2 PCM-DSPIO/J1708 OPERATIONS MANUAL 981117

2 PCM-DSPIO TECHNICAL REFERENCE

2.1 Introduction

This sec tion of the man ual is in tended to pro vide suf fi cient in for ma tion re gard ing the
con figu ra tion and us age of the PCM- DSPIO mod ule. Win Sys tems main tains a Tech ni cal
Sup port Group to help an swer ques tions re gard ing con figu ra tion and pro gram ming of the
board. For an swers to ques tions not ade quately ad dressed in this man ual, con tact Tech ni ­cal Sup port at (817) 274- 7553 be tween 8AM and 5PM Cen tral Time. Tech ni cal sup port
may also be re quested via FAX at (817) 548- 1358. Ap pen dix C con tains the com plete re ­print of the Star tech 16C552 da tasheet and is pro vided to the pro gram mer as a source of in ­for ma tion for all UART reg is ters and par al lel port reg is ter de tails.

2.2 Serial I/O Address Selection

Serial Address Select jumper J9
Interrupt Routing Header J7

J7

J9

1 o o 2
3 o o 4

1 o o 2
3 o o 4
5 o o 6
7 o o 8
9 o o 10
11 o o 12
13 o o 14
15 o o 16
17 o o 18
19 o o 20

The PCM- DSPIO maps the two se rial chan nels to any of 4 pairs of ad dresses as de fined
in the il lus tra tion be low.

J9 J9

1 o o 2
3 o o 4

CH1 - 3F8H
CH2 - 2F8H

1 o o 2
3 o o 4

CH1 - 3E8H
CH2 - 2E8H

J9

1 o o 2
3 o o 4

CH1 - 3A8H
CH2 - 2A8H

J9

1 o o 2
3 o o 4

CH1 - 380H
CH2 - 280H

981117 PCM-DSPIO/J1708 OPERATIONS MANUAL Page 2-1

WinSystems - "The Embedded Systems Authority"

2.3 Serial Interrupt Selection

Both se rial chan nels can be pro grammed to gen er ate in ter rupts on Trans mit ter empty,

Re ceive char ac ter ready, or Line status changes. Each chan nel's in ter rupt out put can be
routed to an IRQ pin on the PC/104 bus via the jumper block at J7. Note that each chan nel
is re peated through out the jumper block sev eral times al low ing ac cess to most any of the
bus in ter rupts. Jump ers may be placed ver ti cally or hori zon tally to route the se rial in ter ­rupt to the bus. The il lus tra tion be low shows the J7 header and its cor re spond ing pin defi ­ni tions.

J7

CH1

IRQ3

CH1

IRQ5

CH1

IRQ10

CH1

IRQ12

CH1

LPT

1 o o 2
3 o o 4
5 o o 6
7 o o 8
9 o o 10
11 o o 12
13 o o 14
15 o o 16
17 o o 18
19 o o 20

IRQ2
CH2
IRQ4
CH2
IRQ7
CH2
IRQ11
CH2
IRQ15
CH2

2.4

RS-232 Line Drivers U1, U2
RS-422/RS-485/J1708

Line Drivers U3, U4, U5, U6

Serial configuration
jumpers J2, J3, J5, J6

RS-232 Mode Configuration

U2

U5

J6

1 o
2 o
3 o

J5

1 o
2 o
3 o

U6 U4

U1

U3

J2

1 o
2 o
3 o

J3

1 o
2 o
3 o

Full RS- 232 sig nal lev els are stan dard on both se rial chan nels. The two se rial chan nels

are ter mi nated at J1 and a dual DB9 ca ble is avail able from Win Sys tems un der part
number CBL- 173-1. The fol low ing il lus tra tions show the cor rect jump er ing, driver IC in ­stal la tion, and DB9 I/O con nec tor pin- out for RS- 232 on each chan nel. Ref er to Ap pen dix D
for pin defi ni tions when not us ing the CBL- 173-1 ca ble.

Page 2-2 PCM-DSPIO/J1708 OPERATIONS MANUAL 981117

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2.4.1 Channel 1 - RS-232

Jumper Positions Driver IC Status I/O Connector Pin Defs

J5 J6 CH1 DB9

1 o
2 o
3 o

1 o
2 o
3 o

U2 - Installed
U5 - Not Installed
U6 - Not Installed

CD

RX Data

TX Data

DTR

GND

1 o o 6
2 o o 7
3 o o 8
4 o o 9
5 o

DSR
RTS
CTS
RI

2.4.2

2.5

Channel 2 - RS-232

Jumper Positions Driver IC Status I/O Connector Pin Defs

J2 J3 CH2 DB9

1 o
2 o
3 o

1 o
2 o
3 o

U1 - Installed
U3 - Not Installed
U4 - Not Installed

RX Data

TX Data

CD

DTR

GND

1 o o 6
2 o o 7
3 o o 8
4 o o 9
5 o

DSR
RTS
CTS
RI

RS-422 Mode Configuration

RS- 422 sig nal lev els are sup ported on ei ther or both se rial chan nels with the in stal la ­tion of the op tional “Chip Kit” part number CK- 75176-2. This kit pro vides the driver ICs
nec es sary for a sin gle chan nel of RS- 422. If two chan nels of RS- 422 are re quired then two
kit will be needed. RS- 422 is a 4- wire point to point full- duplex in ter face al low ing much
longer runs than are pos si ble with RS- 232. The dif fer en tial trans mit ter and re ceiver
twisted- pairs of fer a high de gree of noise im mu nity. RS- 422 usu ally re quires that the lines
be ter mi nated at both ends. This ter mi na tion can be ac com plished ei ther on the ca ble or by
in stall ing re sis tors on the board in lo ca tions re served for them. The meth od ol ogy in de t er ­min ing the cor rect re sis tor val ues is be yond the scope of this docu ment but we rec om mend
trial val ues of 100 Ohms in all three lo ca tions at the re ceiver end. The fol low ing il lus tra ­tions show the cor rect jump er ing, driver IC in stal la tion, DB-9 I/O con nec tor pin- out, and
ter mi na tion re sis tor lo ca tions for each of the chan nels when used in RS- 422 mode.

981117 PCM-DSPIO/J1708 OPERATIONS MANUAL Page 2-3

WinSystems - "The Embedded Systems Authority"

2.5.1 Channel 1 - RS-422

Jumper Positions Driver IC Status

J5 J6

1 o
2 o
3 o

vcc

1 o
2 o
3 o

U2 - Not Installed
U5 - Installed
U6 - Installed

I/O Connector Pin Defs

CH1 DB9
1 o o 6

N/C

TX+

TX-

N/C

GND

2 o o 7
3 o o 8
4 o o 9
5 o

RX+
RX­N/C
N/C

RS- 422 NOTE : When used in RS- 422

R10

mode the trans mit ter must be en abled via
soft ware by set ting the RTS bit in the Mo -

RX+

R11

RX-

R12

2.5.2

Jumper Positions Driver IC Status I/O Connector Pin Defs

Channel 2 - RS-422

dem Con trol reg is ter (Bit 1).

J2 J3 CH2 DB9

1 o
2 o
3 o

1 o
2 o
3 o

vcc

U1 - Not Installed
U3 - Installed
U4 - Installed

N/C

TX+

TX-

N/C

GND

1 o o 6
2 o o 7
3 o o 8
4 o o 9
5 o

RS- 422 NOTE : When used in RS- 422

R7

RX+

R5

RX-

R6

mode the trans mit ter must be en abled via
soft ware by set ting the RTS bit in the Mo ­dem Con trol reg is ter (Bit 1).

RX+
RX­N/C
N/C

Page 2-4 PCM-DSPIO/J1708 OPERATIONS MANUAL 981117

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2.6 RS-485 Mode Configuration

The RS- 485 multi- drop in ter face is sup ported on both se rial chan nels with the in stal la ­tion of the op tional “Chip Kit”, Win Sys tems part number CK- 75176-2. A sin gle kit is suf fi ­cient to con fig ure both chan nels for RS- 485. RS- 485 is a 2 wire multi- drop in ter face where
only one sta tion at a time talks (trans mits) while all oth ers lis ten (re ceive). RS- 485 usu al ly
re quires that the line- pair be ter mi nated at each end of the run. The re quired ter mi na tion
show the cor rect jump er ing, driver IC in stal la tion, DB9 I/O con nec tor pin- out, and ter mi ­na tion re sis tor lo ca tions for each of the chan nels when used in the RS- 485 mode.

2.6.1 Channel 1 - RS-485

Jumper Positions Driver IC Status I/O Connector Pin Defs

1 o
2 o
3 o

J5

J6 CH1 DB9

1 o
2 o
3 o

vcc

U2 - Not Installed
U5 - Installed
U6 - Not Installed

1 o o 6

N/C

N/C

GND

2 o o 7
3 o o 8
4 o o 9
5 o

TX/RX+

TX/RX-

RS- 485 NOTE : Be cause RS- 485 uses

a sin gle twisted- pair, all trans mit ters are

R15

con nected in par al lel. Only one sta tion
may trans mit, or have its trans mit ter en -

TX/RX+

R16

abled at a time. The trans mit ter En ­able/Dis able is con trolled by Bit 1 in the
Mo dem Con trol reg is ter (RTS). When set,

TX/RX-

R17

the trans mit ter is en abled, when cleared
(the nor mal state) the trans mit ter is dis ­abled and the re ceiver is en abled. Note
that it is nec es sary to al low some mini mal
set tling time af ter ena bling the trans mit ­ter bef ore trans mit ting the first char ac ­ter. Like wise, fol low ing a trans mis sion, it
is nec es sary to be sure that all char ac ters
have been com pletely shifted out of the
UART (Check bit 6 in the Line status reg ­is ter) bef ore dis abling the trans mit ter to
avoid chop ping off the last char ac ter.

TX/RX+
TX/RX­N/C
N/C

981117 PCM-DSPIO/J1708 OPERATIONS MANUAL Page 2-5

WinSystems - "The Embedded Systems Authority"

2.6.2 Channel 2 - RS-485

Jumper Positions Driver IC Status I/O Connector Pin Defs

J2

1 o
2 o
3 o

J3

1 o
2 o
3 o

R2

R3

R4

vcc

U1 - Not Installed
U3 - Installed
U4 - Not Installed

TX/RX+

TX/RX-

CH2 DB9

N/C

TX/RX+

TX/RX-

N/C

GND

1 o o 6
2 o o 7
3 o o 8
4 o o 9
5 o

TX/RX+
TX/RX­N/C
N/C

RS- 485 NOTE : Be cause RS- 485 uses
a sin gle twisted- pair, all trans mit ters are
con nected in par al lel. Only one sta tion
may trans mit, or have its trans mit ter en ­abled at a time. The trans mit ter En ­able/Dis able is con trolled by Bit 1 in the
Mo dem Con trol reg is ter (RTS). When set,
the trans mit ter is en abled, when cleared
(the nor mal state) the trans mit ter is dis ­abled and the re ceiver is en abled. Note
that it is nec es sary to al low some mini mal
set tling time af ter ena bling the trans mit ­ter bef ore trans mit ting the first char ac ­ter. Like wise, fol low ing a trans mis sion, it
is nec es sary to be sure that all char ac ters
have been com pletely shifted out of the
UART (Check bit 6 in the Line status reg ­is ter) bef ore dis abling the trans mit ter to
avoid chop ping off the last char ac ter.

Page 2-6 PCM-DSPIO/J1708 OPERATIONS MANUAL 981117

WinSystems - "The Embedded Systems Authority"

2.7 SAE J1708 Configuration

The So ci ety of Auto mo tive En gi neers (SAE) J1708 in ter face is a varia tion of the RS- 485
in ter face which is used for “Se rial Data Com mu ni ca tions be tween Mi cro com puter Sys tems
in Heavy Duty Ve hi cle Ap pli ca tions”. It is be yond the scope of this docu ment to go into de ­tail on the J1708 speci fi ca tion. The PCM- DSPIO must be fac tory con fig ured for J1708 us ­age through the in stal la tion of a number of re quired ter mi na tion and fil ter ing com po nent s.
The fol low ing il lus tra tions show the cor rect jump er ing, driver IC in stal la tion, DB9 I/O con ­nec tor pin defi ni tions, and ter mi na tion net work de tails for each of the chan nels when used
in J1708 mode.

2.7.1 Channel 1 - SAE J1708

Jumper Positions Driver IC Status I/O Connector Pin Defs

R15

4.7K

R16

Absent

R17

4.7K

J5

1 o
2 o
3 o

vcc

J6

1 o
2 o
3 o

R14

4.7 OHM

C15 .0022 ufd

C11 .0022 ufd

R9

4.7 OHM

U2 - Not Installed
U5 - Installed
U6 - Not Installed

TX/RX+

TX/RX-

N/C

TX/RX+

TX/RX-

N/C

GND

CH1 DB9

1 o o 6
2 o o 7
3 o o 8
4 o o 9
5 o

TX/RX+
TX/RX­N/C
N/C

981117 PCM-DSPIO/J1708 OPERATIONS MANUAL Page 2-7

WinSystems - "The Embedded Systems Authority"

2.7.2 Channel 2 - SAE J1708

Jumper Positions Driver IC Status I/O Connector Pin Defs

J2 J3 CH2 DB9

1 o
2 o
3 o

vcc

R2

4.7K

R3

Absent

R4

4.7K

1 o
2 o
3 o

R8

4.7 OHM

C7 .0022 ufd

C3 .0022 ufd

4.7 OHM

R1

U1 - Not Installed
U3 - Installed
U4 - Not Installed

TX/RX+

TX/RX-

N/C

TX/RX+

TX/RX-

N/C

GND

1 o o 6
2 o o 7
3 o o 8
4 o o 9
5 o

TX/RX+
TX/RX­N/C
N/C

2.8

Parallel Port I/O Address Selection

Parallel Port Configuration
Jumpers J8, J10

J8

1 o o 2

J10

1 o o 2

The par al lel port on the PCM- DSPIO can be I/O mapped at ei ther of 2 base ad dresses as

de ter mined by jumper block J10. The fol low ing il lus tra tion shows the J10 jump er ing for
each of the two sup ported ad dresses.

Page 2-8 PCM-DSPIO/J1708 OPERATIONS MANUAL 981117

WinSystems - "The Embedded Systems Authority"

J10 J10

1 o o 2 1 o o 2

BASE ADDRESS 378H

BASE ADDRESS 3BCH

2.9 Parallel Port Direction Control

The par al lel port on the PCM- DSPIO is ca pa ble of bi- directional data trans fer. The
jumper block at J8 de fines the method(s) avail able to con vert be tween in put mode and out ­put mode. The ta ble be low shows the re la tion ship be tween the J8 jumper in stal la tion and
the I/O se lec tion modes avail able. For ad di tional de tails on I/O di rec tion con trol ref er to the
Star tech 16C552 re print in Ap pen dix C.

Con trol Reg is ter Bit

5 J8 Jumper

X ON AA Hex In put Mode
X ON 55 Hex Out put Mode

0 OFF X Out put Mode
1 OFF X In put Mode

2.10

Parallel Port Interrupt Routing

I/O Se lect

Reg is ter

Port Di rec tion

The par al lel port on the PCM- DSPIO, like those on stan dard PC printer ports, is ca pa ­ble of gen er at ing an in ter rupt on printer ac knowl edge. This fea ture is not used by a PC
BIOS and is rarely used by PC soft ware. In the event this in ter rupt is de sired, it may be
routed to the bus us ing a jumper wire from pin 19 on J7 to the de sired bus in ter rupt. The
pin defi ni tions for the J7 in ter rupt rout ing header are shown be low :

J7

CH1

2.11

1 o o 2

IRQ3

3 o o 4

CH1

5 o o 6

IRQ5

7 o o 8

CH1
CH1
CH1

LPT

9 o o 10
11 o o 12
13 o o 14
15 o o 16
17 o o 18
19 o o 20

IRQ10
IRQ12

Parallel Port I/O Connector Pinout

IRQ2
CH2
IRQ4
CH2
IRQ7
CH2
IRQ11
CH2
IRQ15
CH2

The par al lel port on the PCM- DSPIO ter mi nates at con nec tor J4. An in ter face ca ble
Win Sys tems part number CBL- 102-1 is avail able which con nects to J4 and then pres ents
the stan dard DB25 female con nec tor to which PC printer ca bles may be at tached. If us ing

981117 PCM-DSPIO/J1708 OPERATIONS MANUAL Page 2-9

WinSystems - "The Embedded Systems Authority"

the par al lel port for cus tom I/O or for ref er ence, the fol low ing il lus tra tion shows the p in
defi ni tions for J4.

J4

/STB

PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7

/ACK

BUSY

PE

SLCT

1 o o 2
3 o o 4
5 o o 6
7 o o 8
9 o o 10
11 o o 12
13 o o 14
15 o o 16
17 o o 18
19 o o 20
21 o o 22
23 o o 24
25 o o 26

/AFD
/ERROR
/INIT
/SLIN
GND
GND
GND
GND
GND
GND
GND
GND
N/C

2.12

PC/104 Bus Connectors

The PCM- DSPIO plugs onto the PC/104 bus us ing the con nec tors at J11 and J12 (PCM-

DSPIO- 16 only). The PC/104 bus pin defi ni tions are shown here for ref er ence.

GND

RESET

+5V

IRQ2

-5V

DRQ2

-12V

0WS

+12V

GND

SMEMW

SMEMR

IOW

IOR

DACK3

DRQ3

DACK1

DRQ1

DACK0

CLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3

DACK2

T/C

BALE

+5V

OSC
GND
GND

J11

B1 o o A1
B2 o o A2
B3 o o A3
B4 o o A4
B5 o o A5
B6 o o A6
B7 o o A7
B8 o o A8
B9 o o A9
B10 o o A10
B11 o o A11
B12 o o A12
B13 o o A13
B14 o o A14
B15 o o A15
B16 o o A16
B17 o o A17
B18 o o A18
B19 o o A19
B20 o o A20
B21 o o A21
B22 o o A22
B23 o o A23
B24 o o A24
B25 o o A25
B26 o o A26
B27 o o A27
B28 o o A28
B29 o o A29
B30 o o A30
B31 o o A31
B32 o o A32

IOCHK
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
IOCHRDY
AEN
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
GND

GND

SBHE

LA23
LA22
LA21
LA20
LA19
LA18
LA17

MEMR

MEMW

SD8

SD9
SD10
SD11
SD12
SD13
SD14
SD15

KEY

J12

C0 o o D0
C1 o o D1
C2 o o D2
C3 o o D3
C4 o o D4
C5 o o D5
C6 o o D6
C7 o o D7
C8 o o D8
C9 o o D9
C10 o o D10
C11 o o D11
C12 o o D12
C13 o o D13
C14 o o D14
C15 o o D15
C16 o o D16
C17 o o D17
C18 o o D18
C19 o o D19

GND
MEMCS16
IOCS16
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
DACK0
DRQ0
DACK5
DRQ5
DACK6
DRQ6
DACK7
DRQ7
+5V
MASTER
GND
GND

Page 2-10 PCM-DSPIO/J1708 OPERATIONS MANUAL 981117

WinSystems - "The Embedded Systems Authority"

2.13 Connector/Jumper Summary

Con nec tor/ Pur pose Page
Jumper Ref er ence

J1 Se rial I/O Con nec tor 2-2
J2 Chan nel 2 RS- 485/J1708 con figu ra tion jumper 2-3
J3 Chan nel 2 RS- 486/J1708 con figu ra tion jumper 2-3
J4 Par al lel Port I/O con nec tor 2-9
J5 Chan nel 1 RS- 485/J1708 con figu ra tion jumper 2-3
J6 Chan nel 1 RS- 485/J1708 con figu ra tion jumper 2-3
J7 In ter rupt rout ing header 2-2
J8 Par al lel Port Bi- directional mode con trol jumper 2-9
J9 Se rial I/O Map se lect jumper 2-1
J10 Par al lel Port I/O ad dress se lect jumper 2-8
J11 PC/104 8- bit Bus con nec tor 2-10
J12 PC/104 16- bit Bus con nec tor 2-10

981117 PCM-DSPIO/J1708 OPERATIONS MANUAL Page 2-11

APPENDIX

Startech 16C522 Datasheet Reprint

Printable datasheet in PDF format DP83905_ ATLANTIC .pdf

Cables

Part Number Description

CBL-101-3 26-pin ribbon to 25-pin male “D” connector parallel adapter cable

CBL-173-1 20-pin ribbon to two male 9-pin “D” connector adapter cable

Software

Simple C routine that uses receive interrupt 8250INTA.ZIP

981117 PCM-DSPIO/J1708 OPERATIONS MANUAL