Texas Instruments DS10, 990 Installation And Operation Manual
Model 990 Computer
Model
DS10
Cartridge Disk System
~~~n'"'
<.~
Installation and Operation
Part No. 946261-9701 * B
15 December
1980
TEXAS
INSTRUMENTS
© Texas Instruments Incorporated 1977, 1978, 1979, 1980
All Rights Reserved, Printed in U.S.A.
The
information
and/or
drawings
set
forth
in
this
document
and all
rights
in and
to
inventions
disclosed
herein and
patents
which
might
be granted thereon
disclosing
or
employing
the materials,
methods,
techniques
or apparatus
described
herein, are the
exclusive
property
of
Texas
Instruments
Incorporated.
MANUAL REVISION HISTORY
Model 990 Computer Model DS10 Cartridge Disk System
Installation
and Operation (946261-9701
*8)
Original Issue
..................................
. 1 December 1977
Change 1
....................................
. 15 January 1978 (ECN 419819)
Change 2
....................................
. 15 August 1978 (ECN 437233)
Change 3
.....................................
15 March 1979 (ECN 449602)
Change 4
....................................
. 15 August 1980 (MCR 000297)
Revision .
......................................
. 15 December 1980 (MCR 000440)
I The total number
of
pages in this publication
is
126.
I
I
I
l
________________________
J
"i1"
946261-9701
~-------
PREFACE
This manual provides detailed instructions for installing a Texas Instruments Model DSIO
Cartridge Disk System in conjunction with a properly installed Model 990 Computer. In addition,
it
contains information required
description
information
Section
1 General Description - This section briefly describes the features and major com-
of
the disk system with specific attention to the controls and indicators. The
is divided
ponents
of
into
the
the
disk system
to
program the computer
following sections:
to
acquaint the reader with the system.
to
use the disk system and a
2 Installation -
ing
a Model DSIO Cartridge Disk System. Information is also provided
the site for the installation
The procedures given in
digital electronics.
3
Programming
in
designing a service routine
4
Operation - This section describes
disk system operators, and describes the use
operation
Model 990/5 Computer System Hardware User's Manual
Model
Model
Model
Depot Maintenance Manual
This section contains step-by-step procedures for unpacking and install-
is properly prepared prior
this section presuppose
~
This section presents interfacing information for use
to
control the disk system's activity.
of
the
disk system.
Title
990/10 Computer System Hardware Reference Manual
990/12 Computer Hardware User's Manual
990 Computer Model DSIO Cartridge Disk System
to
that
the
controls and indicators
of
those controls and indicators in the
installation
the reader
of
Part Number
946294-9701
945417
2264446-9701
946262-9701
to
ensure that
of
the disk system.
is
not
familiar with
by
a programmer
the
disk system for
-9701
Model
Model
Language Programmer's Guide
990 Computer Programming Card
990 Computer TMS 9900 Microprocessor Assembly
iii/iv
943440-9701
943441-9701
Digital Systems Division
~-------
'iY
946261-9701
TABLE
OF
CONTENTS
Pangrapb
Title Page
SECTION 1.
GENERAL
DESCRIPTION
1.1 General
.....................................................................
-
...
1-1
1.2 System Configuration
............................................................
1-1
1.2.1
TILINE
Bus
....... ' ...........................................................
1-2
1.2.2 Disk Controller
...............................................................
1-5
1.2.3 Disk Drives
..................................................................
1-5
1.3 System Operation
...............................................................
1-6
1.4 System Specifications
...........................................................
1-10
2.1
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.5.1
2.3.5.2
2.3.5.3
2.3.6
2.4
2.4.1
2.4.2
2.4.3
2.4.3.1
2.4.3.2
2.4.3.3
2.4.3.4
2.4.4
2.4.4.1
2.4.5
2.4.6
2.4.7
2.4.8
2.4.8.1
2.4.8.2
SECTION 2.
INSTALLATION
General
........................................................................
2-1
Site Requirements
...............................................................
2-2
Mounting
Space Requirements for Rack
Mount
Disk Drive
..........................
2-2
Mounting
Space Requirements for Cabinet
Mount
Disk Drive
........................
2-2
Ac Power Requirements
........................................................
2-5
Model
990
Computer
..........................................................
2-5
Supportive Environment
.......................................................
2-6
Cabling Restrictions
...........................................................
2-6
Unpacking Instructions
.....................
'
.....................................
2-6
Unpacking Rack
Mount
Disk Drive
..............................................
2-6
Unpacking Disk Controller
....................................................
2-12
Unpacking Cabinet
Mount
Disk Drive
...........................................
2-17
Unpacking Accessories
.. ~ .....................................................
2-21
Unpacking, Handling,
and
Storing Disk Cartridges
................................
2-21
Unpacking Disk Cartridges
..................................................
2-22
Handling Disk Cartridges
...................................................
2-22
Storing Disk Cartridges
.....................................................
2-23
Voltage Conversion Procedures
................................................
2-24
Installation
....................................................................
2-24
Installation
of
Rack
Mount
Disk Drive
..........................................
2-24
Installation
of
Cabinet
Mount
Disk Drive
........................................
2-28
Computer
Chassis
Preparation
for Disk Controller
................................
2-29
Reconfiguring Access
Granted
Circuit
for
New Chassis Slot
(6-
and
13-Slot Chassis)
...................................................
2-29
Reconfiguring Access
Granted
Circuit for New Chassis Slot
(17-Slot
Chassis)
.........................................................
2-34
Interrupt Connections
for 6-and
13-S10t Chassis
................................
2-37
Interrupt Connections
for
17-Slot Chassis
......................................
2-39
Preparation
of
Disk Controller
.................................................
2-42
Selecting Disk
TILINE
Address
..............................................
2-42
Installation
of
Disk Controller
.................................................
2-42
Installing Disk System Interconnection Cables
....................................
2-42
Connection
of
Disk Drive
to
Ac
Power
Source
....................................
2-49
Disk Cartridge Installation
and
Removal
.........................................
2-51
Purging
the
Disk Drive
Air
Filtering System
....................................
2-51
Disk Cartridge Installation
..................................................
2-52
v Digital Systems Division
~-------
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946261-9701
Paragraph
2.4.8.3
2.4.8.4
2.5
3.1
3.2
3.3
3.4
3.4.1
3.4.2
3.4.2.1
3.4.2.2
3.5
3.5.1
3.5.2
3.5.3
3.5.4
3.5.5
3.5.6
3.5.7
3.5.8
3.5.9
3.5.9.1
3.5.9.2
3.5.9.3
3.5.9.4
3.5.9.5
3.5.9.6
3.5.9.7
3.5.9.8
3.6
3.6.1
3.6.2
3.6.2.1
3.6.2.2
3.6.2.3
3.6.2.4
3.6.2.5
3.6.2.6
3.6.2.7
3.6.2.8
TABLE OF CONTENTS (Continued)
Tide
Page
Disk Cartridge Removal
.....................................................
2-56
Removal
of
Disk Cartridge Following Power Failure
or
for Emergency
.............
2-58
System Operational Checkout
....................................................
2-59
SECTION 3. PROGRAMMING
General
........................................................................
3-1
Programming the Disk Controller
.................................................
3-1
Command Control
......................................................
,
.......
3-1
Command Completion
...........................................................
3-1
Command Completion without Interrupts
........................................
3-3
Command Completion with Interrupts
...........................................
3-3
Command Completion Interrupts
..............................................
3-3
Seek and Restore Completion Interrupts
........................................
3-3
Control Words Content and Formats
...............................................
3-3
Disk Status, Control Word 0 ,
...................................................
3-3
Command Control, Control Word 1
.............................................
3-4
Format and Sector, Control Word 2
..............................................
3-5
Cylinders, Control Word 3
.....................................................
3-6
Word Count, Control Word 4
...................................................
3-6
LSB Memory Address, Control Word 5
...........................................
3-7
Unit Select and MSB Memory Address, Control Word 6
.............................
3-7
Interrupt and Controller Status, Control Word 1
...................................
3-8
Disk Commands
.............................................................
3-10
Store
Registers Command
...................................................
3-10
Write Format Command
....................................................
3-10
Read Data Command
.......................................................
3-12
Write Data Command
......................................................
3-13
Read Unformatted Command
................................................
3-14
Unformatted Write Command
...............................................
3-15
Seek Command
............................................................
3-15
Restore Command
.........................................................
3-15
Formats and DefInitions
........................................................
3-16
Definition
of
Terms
..........................................................
3-16
Sector Format
...............................................................
3-16
Gap 1
....................................................................
3-11
Synchronization (Sync) Character
............................................
3-17
Identification (ID) Words
...................................................
3-11
Error Detection Code (EDC) Number 1
........................................
3-18
Gap2
.....................................................................
3-18
Data
.....................................................................
3-18
Error Detection Code (EDC) Number 2
........................................
3-18
Gap 3
....................................................................
3-18
SECTION 4. OPERATION
4.1 General
........................................................................
4-1
4.2 Controls and Indicators
..........................................................
4-1
4.2.1 Ac Circuit ·Breaker
............................................................
4-1
vi
Digital Systems Division
~-------
~
946261-9701
Paragraph
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.2.9
4.3
4.3.1
4.3.2
4.3.3
4.3.3.1
4.3.3.2
4.3.3.3
4.3.4
4.3.5
4.3.6
4.3.7
4.3.8
4.4
4.5
4.5.1
4.5.2
4.5.3
4.5.3.1
4.5.3.2
Table
TABLE OF CONTENTS (Continued)
Title
Page
Dc Circuit Breaker
............................................................
4-1
START/STOP
Switch/Indicator
...............................................
.4-1
READY Indicator
.............................................................
4-2
ACTIVE
Indicator
............................................................
4-2
F
AUL T /RESET
Indicator/Switch
...............................................
4-2
WRITE/PROTECT
CART
Indicator/Switch
....................................
.4-3
WRITE/PROTECT
FIXED
Indicator/Switch
.....................................
4-3
BRU~H
Indicator
.............................................................
4-3
Operating Instructions
...........................................................
4-3
Operating Precautions
.........................................................
4-3
Power Application for Online Operation
..........................................
4-4
Disk Cartridge Installation
and
Removal
..........................................
4-4
Disk Cartridge Installation
...................................................
4-4
Disk Cartridge Removal
......................................................
4-5
Removal
of
Disk Cartridge Following Power Failure
or
for
Emergency
..............
4-6
Write
Protect
.................................................................
4-6
Stop
and
Power
Removal
.......................................................
4-6
Changing Disk Assignments
....................................................
4-7
Fault
Operating Procedures
.....................................................
4-7
Operator
Preventive Maintenance
...............................................
4-7
Maintenance Aids
...............................................................
4-7
Preventive Maintenance
.....................
~
...................................
4-11
Preventive Maintenance
for
the
Rack
Mount
Disk Drive
............................
4-11
Preventive Maintenance
for
the
Cabinet
Mount
Disk Drive
.........................
4-11
Preventive Maintenance
for
the
Cartridge Disk
...................................
4-12
General
...........................................
'
........................
4-12
Maintenance Procedures
....................................................
4-13
LIST OF ILLUSTRATIONS
TItle Page
1-1
Model
DSI0
Cartridge Disk System
................................................
1-0
1-2 Model
DSI0
Cartridge Disk
Unit
Subsystem Simplified Diagram
.......................
1-2
1-3
TILINE
Master-to-Slave Write Cycle Timing
........................................
1-3
1-4
TILINE
Master-to-Slave
Read
Cycle Timing
........................................
1-4
1-5
Interconnection
of
Disk Controller
and
Two Disk Drives
..............................
1-6
1-6 Model
DSI0
Cartridge Disk Controller (PWB)
.......................................
1-7
1-7 Model
DSI0
Cartridge Disk Controller (Fine Line PWB)
..............................
1-8
1-8 Model
DSI0
Cartridge Disk Drive (Cabinet Mount)
...................................
1-9
1-9 Rack
Mount
Disk Drive Physical Dimensions
.......................................
I-II
1-10 Cabinet
Mount
Disk Drive Physical Dimensions
....................................
1-12
2-1
Model
DSI0
Cartridge Disk System Components
.....................................
2-3
2-2 Recommended Rack Dimensions for Model
DSI0
Cartridge Disk Drive
..................
2-4
2-3
Physical Dimensions
of
Cabinet
Mount
Model DSIO Cartridge Disk Drive
...............
2-5
2-4 Rack
Mount
Disk Drive Shipping Configuration
.....................................
2-7
2-5 Cabinet
Mount
Disk Drive Shipping Configuration
...................................
2-8
2-6 Placement
of
Disk Drive for Shipping Bolt Removal
..................................
2-9
vii
Digital Systems Division
)175\
______
_
~
946261-9701
LIST OF ILLUSTRATIONS (Continued)
Figure
Title
Page
2-7
Location
of
Electronics Cover Screws
.............................................
2-10
2-8
Carriage Lock Pin Location
.....................................................
2-11
2-9 Card Cage Cover and Clamp Location
.............................................
2-12
2-10 Disk Drive PWB Locations
......................................................
2-13
2-11
Control PWB Switch Settings
....................................................
2-14
2-12 Sector PWB Switch Settings
.....................................................
2-15
2-13
Servo PWB Switch Settings
......................................................
2-16
2-14 Data Recovery PWB Switch Settings
..............................................
2-17
2-15
R/W
/E
PWB Resistor Module Orientation
.........................................
2-18
2-16 Disk Controller Shipping Configuration
...........................................
2-19
2-17
Disk Controller Standard Jumpers
................................................
2-20
2-18
Disk Cartridge
.................................................................
2-23
2-19 Voltage Jumper Plug and Connector
..............................................
2-25
2-20 Rack Slide Assembly Mounting
...................................................
2-27
2-21
Rack Mount Slide Configuration (Right Side Only)
..................................
2-28
2-22 TILINE Access Granted Jumper Locations for
6-S10t
Chassis (Current Production)
......
2-31
2-23
TILINE Access Granted Jumper Locations for
13-S10t
Chassis (Current Production)
.....
2-32
2-24 TILINE Access Granted Jumpers (P2-5 to P2-6) on the Model
990
Backpanel
............
2-33
2-25
Interrupt Plug and TLAG Jumper Switches in the
17-S10t
Chassis
......................
2-35
2-26
17-S10t
Chassis TLAG Jumper Switch Settings
......................................
2-36
2-27
Location
of
Interrupt Jumpers
(6-
and
13-S10t
Chassis)
...............................
2-37
2-28
6-S10t
Chassis Interrupt Jumper Plugs
.............................................
2-39
2-29
13-S10t
Chassis Interrupt Jumper Plugs
............................................
2-40
2-30
17-S10t
Chassis Interrupt Jumper Connector
........................................
2-41
2-31
Model DSI0 Cartridge Disk Controller (PWB)
......................................
2-43
2-32 TILINE Slave Address Switches
..................................................
2-44
2-33
Interconnection Cable Connector Mating
..........................................
2-45
2-34 Interconnection Cable Dressing in Computer Chassis
................................
2-46
2-35
Cable Adapter. , ,
.... , .........................................................
2-47
2-36 Cable Arrangement on Cable Carriers
.............................................
2-48
2-37
XRM (n) Resistor Packs to be Removed from Primary Rack
Mount Disk Drive
I/O
Board
..................................................
2-50
2-38
XRM (n) Resistor Packs to be Removed from Primary Cabinet
Mount Disk Drive
I/O
Board
..................................................
2-50
2-39 Switches and Settings for Rack Mount Primary Disk Drive
............................
2-53
2-40 Switches and Settings for Cabinet Mount Primary Disk Drive
.........................
2-54
2-41
Disk Drive Circuit Breakers
......................................................
2-55
2-42 Brush Indicator
................................................................
2-56
2-43
Disk Cartridge Installation
......................................................
2-57
2-44 Cartridge Locks
................................................................
2-58
3-1
Model DSI0 Disk System Control Word Formats
....................................
3-2
3-2
Control Word 0
.................................................................
3-3
3-3
Control Word 1
.................................................................
3-4
3-4 Control Word 2
.................................................................
3-6
3-5
Control Word 3
.................................................................
3-6
3-6
Control Word 4
.................................................................
3-6
3-7
Control Word 5
.................................................................
3-7
3-8
Control Word 6
.................................................................
3-7
viii
Digital Systems Division
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~
946261-9701
LIST OF ILLUSTRATIONS (Continued)
Figure
Title
Page
3-9
Control Word 7
.................................................................
3-8
3-10
Command Format
.............................................................
3-10
3-11
Store Registers Data Format
.....................................................
3-11
3-12
Header Data Format
............................................................
3-12
3-13
Format
of
a Sector Record Bit Stream
.............................................
3-17
4-1
Disk Drive Controls and Indicators
................................................
4-2
4-2
Disk Designation Jumper
.........................................................
4-8
4-3
Disk Controller LEOs (pWB Version)
..............................................
4-9
4-4
Disk Controller LEOs (Fine Line PWB Version)
....................................
4-10
4-5
Disk Contaminants
.............................................................
4-13
LIST
OF
TABLES
Table
nde
Page
1-1
Disk Drive Specifications
........................................................
1-10
1-2
General Characteristics
of
Model OSlO Cartridge Disk System
........................
1-11
1-3
Ac
Power Requirements for Disk Drive (Both
50-
and
6O-Hertz
Drives)
.................
1-13
2-1
Model
OSlO
Cartridge Disk System Components
.....................................
2-2
2-2
Site Environmental Requirements for Model
OSlO
Cartridge Disk System
................
2-6
2-3
Disk Drive Input Voltage Jumper Connections
......................................
2-26
2-4
TILINE Slave Address Switch Settings and Addresses
................................
2-44
3-1
Disk Command Bits
.............................................................
3-5
3-2
Example
of
List Words in a Store Registers Command
...............................
3-11
3-3
Write Format Command
........................................................
3-11
3-4
Example
of
Read Data
..........................................................
3-12
3-5
Read Unformatted Command Example
............................................
3-14
3-6
Example
of a Seek
Command
..................................
~
.................
3-15
ix
Digital Systems Division
...-
6
(A)
143663
Figure 1-1. Model OSlO Cartridge Disk System
Jdls-\
______
_
~
946261-9701
SECTION 1
GENERAL DESCRIPTION
1.1
GENERAL
The Model DSI0 Cartridge Disk System (Figure
1-1)
is
a moving-head random-access magnetic disk
data storage system for the Model
990
Computer. The system consists
of
a printed wiring board disk
controller and up
to
two Model DSI0 Cartridge Disk Drives as shown in Figure 1-2. A Model DSI0
Cartridge Disk System consisting
of
one disk controller and two disk drives
is
capable
of
storing
25.2 million unformatted bytes
of
data, 12.6 million per disk drive (20 million,
10
million per disk
drive, when formatted).
The disk system features include:
•
•
•
•
•
•
•
Single printed wiring board controller capable
of
supporting two disk drives.
Transfer rate
of
312K bytes per second
A fixed and a removable disk
Automatic track switching across head and cylinder boundaries
Variable record formats, from one sector to full track
Efficient disk formatting and double-frequency recording for high percentage use
of
storage
Controller self-diagnostic capability
The Model
DSI0 Cartridge Disk System uses a magnetic medium-density (2200 bits per inch) disk
(one fixed, one removable) and flying heads that move laterally over the disk surfaces
to
select dif-
ferent cylinders. Control for up
to
two disk drives resides
on
a disk controller printed wiring board
(PWB) located in a Model 990 Computer chassis. The controller uses
an
on-board microprocessor
to
handle all time-critical events in the transfer
of
data between the computer and the disk drive. The
disk drive assembly includes the mechanical, e1etromechanical, and electronic components required
to rotate the disks, perform track selection, and read and write data on the disk.
1.2
SYSTEM CONFIGURATION
Figure
1-2
illustrates the relationship
of
the major components
of
the Model DSI0 Cartridge Disk
System. The disk controller
is
a full-width PWB that
is
installed in the computer chassis to interface
with the computer's high-speed TILINE* data bus.
Two cables are required
to
connect the controller
to
the primary disk drive. One cable carries control signals and serial data from the controller to the primary disk drive, and the other cable carries
status signals and serial data from the primary disk drive
to
the disk controller. When a second disk
drive
is
installed into a system, the disk drive
is
daisy-chained to the first disk drive with two addi-
tional cables. The cables that interconnect the two disk drives perform the same functions as the
*Trademark
of
Texas Instruments Incorporated.
1-1
Digital Systems Division
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~
946261·9701
r
I
---
---
I
MEMORY
I
I
I
L
AU
-
~
--
~
-
A)
137221
I
COM
MANOS
AND
SERIAL
DATA
..
-
PARALLEL
~
I
..
DISK
STATUS
AND
CONTROLLER
SERIAL
DATA
TILINE
...
I-
INTERFACE
I
PRIMARY
TILINE
DISK
DRIVE
DATA
..
~
BUS
...
I
--
-
~
I
_J
COMMANDS
-
-
-
-
-
-
AND
SERIAL
DAT~_
...
STATUS
AND
SERIAL
DATA
-
SECONDARY
DISK
DRIVE
~-
TERM I NA
TOR
------"
-I-
Figure
1-2.
Model
OSlO Cartridge
Disk
Unit Subsystem Simplifred
Diagram
cables that interconnect the disk controller with the first disk drive. The second disk drive functions
as though it were connected directly to a disk controller.
The cables connect to
an
adapter board at each disk drive. The adapter board mates the flat
ribbon cable connectors to the Winchester connector on the disk drive.
1.2.1 TILINE
BUS.
The TILINE bus
is
an
asynchronous, high-speed, 16-bit parallel data bus
used to transfer data between the central processing unit
(CPU) of the computer, the computer's
memory, and any TILINE device installed in the computer, such
as
magnetic tape and disk
storage systems. Any full-sized
990 circuit board plugged into the Model 990 Computer chassis
may engage the TILINE bus and participate in data transfers. The TILINE bus
is
divided
between two chassis connector slots, PI and P2, in a full-width chassis slot.
Two classes
of
TILINE users interface with the TILINE bus. Users
of
the bus that contend for con-
trol
of
the bus are called TILINE masters, and users that only accept data from the bus are called
TILINE slaves. The disk controller
is
both a master and a slave, depending on the operation being
conducted. The disk controller
is
a slave when receiving commands from the CPU and a master
when contending for the bus to transfer data to or from the computer's memory.
Data
is
transferred between the TILINE bus and the disk controller as parallel, 16-bit words. The
associated address information
is
transferred as parallel, 20-bit words. In addition, a number
of
control lines are used to synchronize TILINE bus transfers and to indicate data parity errors.
Figures
1-3
and
1-4
illustrate the timing relationship between the major signals on the TILINE inter-
face. The signals in Figures
1-3
and
1-4
are described as follows:
1-2
Digital Systems Division
~-------
~
946261-9701
AT
MASTER
TLGO-
TLTM-
TLREAD
TLADR,
00-19,-
TLDAT,
00-15,-
TLMER-
AT
SLAVE
TLGO-
TLTM-
TLREAD
TLADR,
00-19,-
TLDAT,
00-15,-
TLMER-
(A)
137222A
(
T)
I
I
I
(R)
I
(T)
I
I
(T)
VALID
I
I
I
I
~
(T)
I'
VALID
I
I
I
I
I
\
I
I
,
I
I
I
I
I
I
I I
I
\(R)
~
~
I
S
I
I
I
I
(T)
9'
I
I
Y
I
1
(R)
~
I
I
,
I
Y
I
(R)
I'
VALID
I
I
I
I
I
(R)
I'
VALID
Y
I
I
I
I
I
I
I
(T) = TRANSMITTED
(R) = RECEI
VED
NOTE:
TILINE
DELAY
IS
EXAGGERATED
FOR
CLARITY
Figure 1-3. TILINE Master-to-Slave Write Cycle Timing
I
I
L-I-----
I
I
1'--
-I-
IL--I---
-
I
I
\
1'--
-1-
----
I
I
I
\
I~
----
I
\
\\.-
---
f'---
--
X
1\--- -
•
TILINE
Go (TLGO-) - a low-active, master-generated signal that alerts all slaves on the
TILINE bus that a master
is
ready to initiate a data transfer.
TLGO-
directs all slaves to
monitor the TILINE address (TLADR, 00-19) and respond when addressed. The master
that generated
TLGO- holds
TLGO-
low until the addressed slave responds with TILINE
Terminate (TL TM-) or until the master times out.
• TILINE Read (TLREAD) - a high-active, master-generated signal that directs the ad-
dressed slave to fetch data from the addressed memory location and make the data
available to the master that generated TLREAD.
If
TLREAD
is
low, the addressed slave
is
directed to store in the slave's addressed memory location the data that the master has
made available on the interface.
1-3
Digital Systems Division
AT
MASTER
TLGO-
TLTMTLREAD
TLADR
TLDAT-
TLMER-
AT
SLAVE
-
TLGO-
I
.J:>..
TLTM-
TLREAD
TLADR-
TLDAT-
TLMER-
0
cO'
::;:
Q)
-
(I)
~
CD
3
en
(A)
137223A
0
~.
~.
O·
:::s
(T)
(T)
(T)
VALID
~R)
1
I I
I I
I
,'-J
___
_
I I I
--------------------------------------------(-R-)~~~
_________
VA_L_I_D~--~Vr----
----------
I I
(R)
I I
I I
I I
I(R)
VALID
1 1
(T)
(T) = TRANSMI
TTED
(R)
::
RECEI
VED
K 1
ERROR
I;
'-
_________
...:1
I
1
I
I
I
VALID
ERROR
,
- - - -
-1--
NOTE:
TILINE
DELAY
IS
EXAGGERATED
FOR
CLARITY
Figure 1-4. TILINE Master-to-Slave Read Cycle Timing
1'----
1'----
~
946261-9701
~~------------------
TILINE
•
master that generated
memory write or that the slave's memory data
(TLDAT, 00-15). The slave that generated
removes
TILINE
•
dress the slave memory location to be accessed for the read or write operation.
TILLVE Data
provide two-way data transfer over the TILINE interface.
TILINE
•
the master that the active slave detected a parity error when data was fetched from the
slave's memory. The slave performs no parity check on data fetched from its registers.
1.2.2
DISK CONTROLLER. The disk controller
control ROMs (read only memories) implemented on a full-sized Model 990 PWB. The disk controller can be installed into any standard TILINE chassis slot. The controller slave address
switches located on the controller
two disk drives connected
All disk controller operations are initiated by instructions (commands) from the computer. These instructions are directed to the slave address assigned to the controller.
Terminate
TLGO-.
Address
Memory Error
(TLTM-)
(TLADR,
(TLDAT,
as
shown in Figure
- a low-active, slave-generated signal that informs the
TLGO-
00-19-) -
00-15-) -
(TLMER-)
PWB
as
that the slave has accepted the master's data during a
is
valid on the interface
TLTM-
20
low-active, master-generated signals that ad-
16
low-active master- or slave-generated signals that
- a low-active, slave-generated signal that informs
is
a microprocessor-based controller with a set
described in Section
1-5.
holds
TLTM-
2.
The disk controller supports up to
as
TILINE Data
low until the master
of
is
set by
After a disk controller command has been initiated by the computer, the computer cannot read or
write to the slave address
controller
is
forced to zero.
After initiation
The controller contends for TILINE access on a positional priority basis by cycle-stealing with the
CPU and with any other TILINE master devices that are active. After gaining access to the TILINE
bus, the disk controller transfers 16-bit parallel data words to and from the slave it has addressed (in
most cases, a computer memory module). The disk controller
CPU action after it has been activated).
Figure
PWB).
1.2.3 DISK DRIVES. The Model
actuated disk drive with four moving heads (two each for a fixed and a cartridge disk). The disk
drive assembly contains the read/write heads, voice coil, analog and digital circuit boards, power
supply, power amplifier, cartridge receiver, spindle and drive motor, one fixed disk, filter, air
blower and cooling system.
The disk drive operates at 2400 revolutions per minute (rpm) and has an unformatted storage
capacity
tridge to double its storage capacity. The disk drive
482.60-millimeter (19.00-inch) rack with 266.70 millimeters
1-1)
characteristics
is
busy and a slave request
of
a command by the computer, the disk controller may become a TILINE master.
1-6
shows the disk controller (PWB) and Figure
of
100
million bits
or
mounted in its own standalone cabinet (Figure 1-8). Table
of
the disk drive.
of
the designated controller until the command
is
initiated, the request
DSIO
Cartridge Disk Drive (Figures
of
data. Each drive contains one fixed disk and accepts a removable car-
is
is
terminated normally and the idle bit
is
autonomous (not dependent on any
1-7
shows the disk controller (fine line
available for slide mounting in a standard
(10.50 inches)
is
completed. When the
1-1
and
1-2)
is
a voice coil-
of
panel space (Figure
1-1
lists the performance
1-5
Digital
Systems Division
~~------------------
~
946261-9701
50-WIRE
CABLE
937516-0001
-
CABINET
MOUNT
937516-0003
-
RACK
MOUNT
40-WIRE
CABLE
937515-0001
-
CABINET
MOUNT
937515-0003
-
RACK
MOUNT
~--~---~{--------~
6.1
M
(20
FT)
CABLE
(CABINET
MOUNT)
3.05
M
(10FT)
CABLE
(RACK
MOUNT)
CABLE
ADAPTER
,.83
M
(6
FT)
DAISY
CHAIN
CABLES
(A)142127A
CABLE
ADAPTER
937510-0001
P3
P4
DISK
CONTROLLER
ASSEMBLY
(COMPONENT
SIDE)
PI
937505-0001
2262100-0001
P2
NOTES:
1.
WHEN
ONLY
ONE
DISK
DRIVE
IS
USED
THE
TERMINATING
RESISTORS
ARE
LOCATED
ON
THE
PRIMARY
DISK
DRIVE.
2.
STANDARD
CONFIGURATION.
PRIMARY
DISK
DRIVE
(LOGICAL
UNIT
O-FIXED
LOGICAL
UNIT
1-REMOVABLE)2
937513-0001
(RACK
MOUNT)
937513-0005
(CABINET
MOUNT)
SECONDARY
DISK
DRIVE
(LOGICAL
UNIT
2-FIXED
LOGI
CAL
UNI T 3-REMOVABLE)2
TERMINATING
RESISTORS
1
Figure 1-5. Interconnection of Disk Controller and Two Disk Drives
1.3 SYSTEM
OPERATION
The
Model DS 10 Cartridge Disk System provides an auxiliary mass storage facility for
the
Model990
Computer
system. The disk system performs disk-to-memory transfers
between
TILINE
memory
and disk memory. The
data
transfer,
whether
read
or
write,
is
initiated
by
software executing in
the
computer's
central processing
unit
(CPU) and controlled
by
firmware
executing
in
the
microprocessor
of
the
disk controller
after
receipt
of a command
from
the
computer.
The computer addresses the disk system via the disk controller's slave address. The disk controller
then functions as a TILINE master and relieves the computer
of
direct responsibility for the data
transfer. The disk controller fetches parallel data from TILINE memory (write) or transfers serial
data
from disk (read); converts the data to serial or parallel, depending upon the direction
of
the
data
transfer; and completes the transfer. The disk operates under complete control
of
the disk con-
troller.
1-6
Digital
Systems Division
SLAVE
ADDRESS
SWITCHES
(A)137249A
STATUS
LEOS
Figure 1-6. Model DSI0 Cartridge Disk Controller (PWB)
~
I
QO
(A)
143664
SLAVE
ADDRESS
SWITCHES
Figure 1-7. Model
DSI0
Cartridge Disk Controller (Fine Line PWB)
"'ij/
Jd7)\
______
946261-9701
_
(A)
143665
Figure 1-8. Model OSlO Cartridge Disk Drive (Cabinet Mount)
1-9
Digital
Systems Division
~-------
~
946261-9701
Table
I-I.
Disk Drive Specifications
Item
Specificati on
Spindle speed
2400 rpm with
±2%
speed variation with input
frequency
±0.5 hertz and input voltage +10% -
15%
Tracks per surface
Tracks per drive
Tracks per cylinder*
Sectors per drive
Sectors per track
Heads per cylinder*
Heads per drive
Recording surfaces per drive
Recording mode
Track density
Recording density
Bi
ts
per disk drive
Bits per cylinder
Bits per track
Bits per sector
Capacity (unformatted)
Words
per sector
Format overhead
Bit rate
Average access time
Average latency time
Track-to-track access time
Maximum access time
408, numbered 0 through 407
1,632
2
on
each
of
two disks
32,640
20
2
4
4
Double frequency
200 tracks per inch
i 524 bits per inch (outer track)
2200 bits per inch (inner track)
50,000,000 nominal
250,000 nominal
62,500 nominal
3,125
12.6 megabytes
144
48 words
2.5 megahertz
35 milliseconds
12.5 milliseconds
7 milliseconds
60 milliseconds
NOTE: * A cylinder
of
storage consists
of
2 tracks on either
the removable cartridge
or
the fixed disk. The cartridge and
the fixed disk are separate logical units, although they share a
common spindle and a common head carriage; therefore, a
cylinder does not cross disk boundaries.
In a system with one disk controller and two disk drives, the disk controller functions as though only
one disk drive with more storage space were attached. All operations for different disk drives are
identical except for the unit select signal used to identify the drive being addressed.
1.4 SYSTEM SPECIFICATIONS
Table
1-2
lists the physical and electrical characteristics for the disk system.
1-10
Digital Systems Division
'i:Y
946261-9701
~-------
Table 1-2. General Characteristics
Item
Controller physical dimensions
Disk drive physical dimensions
Ac power requirements (disk drive)
Dc power requirements (disk controller)
Operating
Operating
Heat generated
temperature
humidity
by
disk drive
of
Model DSI0 Cartridge Disk System
Description
361.95 x 266.70 x 12.70 millimeters
(14.25 x
See Figures
See
+5
-12
16 ° to
of
10
1050
10.50 x 0.50 inches)
1-9
and 1-10
Table
1-3
V dc @ 5.5 amperes
Vdc
@ 0.03 ampere
32°C (60 °
6.7
°C
(12
to
90% relative
BTU/hr
OF)
to
per
with
90
OF)
with a maximum gradient
hour
no
condensation
(A)
1372288
778.00
(30.63
MM
IN.)
I ,
I
481.08
(18.94
MM
IN.)
V
Figure 1-9. Rack Mount Disk Drive Physical Dimensions
1-11
Digital Systems Division
~
946261·9701
~-------
469".90
(18.50
MM---j;(~~~7~51~~;---1
IN.)
457.20MM
~
~~~~~======~~~~~(~'8~.~0~0~IN~·)~111
____
254.00
(10.00
501.65
(19.75
------~
MM
IN.)
31.75
(1.25
MM
IN.)
MM
IN.)
863.60MM
(34.00
IN.)
(A) t 372298
11111111111111
1II111111II1II111111!!!!!111111I1111111
11111111111111
I
76.20
(3.00
Figure 1-10. Cabinet Mount Disk Drive Physical Dimensions
MM
IN.)
1-12
DlgltaJ Systems Division
~
946261-9701
~-------
Table 1-3.
for Disk Drive (Both
Voltage Operating Current
(Vac)
NOTE: Frequency must be maintained
current
drive and lasts for
Ac
Power Requirements
60-Hertz Drives)
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
at
:to.S hertz tolerance. Start
is
two times rating for each
50- and
(Amperes)
5.6
5.0
4.6
4.3
4.0
3.8
3.6
3.3
3.2
3.0
2.9
2.7
2.6
2.5
2.4
2.3
five
seconds.
1-13/1-14
Digital Systems Division
~
946261-9701
~---~---
SECTION 2
INSTALLATION
2.1
GENERAL
This section contains information for unpacking and inspecting a Model
System, and installing the system
provided
the disk system.
The user should read this entire section before proceeding with the installation. Circumstances that
are unique
order from that set forth in this section. Familiarity with the entire installation procedure will pro-
vide a basis for planning the task before starting.
to
ensure that the site for the installation
to
the user's site may dictate that the installation procedures be performed in a different
Do
not connect or disconnect any plug or circuit board when
power
is
applied,
as
a part
as
voltage transients may damage electronic parts.
of
a Model 990 Computer system. Information
is
properly prepared prior
CAUTION
DS
10 Cartridge Disk
to
installation
is
also
of
The expansion guidelines for the disk system allow daisy-chaining two
controller as described in Section
• Complete single-disk drive system - includes disk controller, disk controller-to-disk
drive interface cables, adapter board, and one disk drive
• Disk controller only - includes disk controller and disk controller-to-disk drive interface
cables with adapter board
• Primary disk drive - includes one disk drive
• Secondary disk drive - includes one disk drive, disk drive-to-disk drive interface cables,
and adapter board.
All
of
the above options are available with rack- or cabinet-mount
disk drives for operation
230-volt, 50-hertz operation. Other voltage and frequency options
must be set during installation.
Major system components, along with their associated part numbers, are listed in Table 2-1. Kit
components and additional options, along with the assembly part numbers and purchase price, may
be obtained from Texas Instruments Incorporated upon request. Components
system are shown in Figure 2-1.
1.
Available kit options are:
NOTE
on
110-volt, 6O-hertz and l00-volt
disk drives from one disk
or
of
a typical disk
Interrupt level assignments are required
Computer's TILINE bus. These connections are made at the factory before shipment for a
standard configuration and installation. However,
to
interface the disk controller
if
necessary, the user may assign new interrupts
2-1
to
the Model 990
Digital Systems Division
~
946261-9781
~-------
Model
Model
Model
Model
Disk cartridge
4O-pin,
SO-pin,
Cable
4O-pin, 1.83-meter
50-pin,
4O-pin,
50-pin,
DS
DS10 disk
DSI0
DSI0
6.10-meter
6.10-meter
adapter
1.83-meter
3.05-meter
3.05-meter
to suit his needs.
Table 2-1. Model
Component
10 disk
controller
control
disk drive, rack
disk drive, cabinet
(20-foot)
(20-~~-<>t)
(6-foot)
(6-foot)
(10-foot)
(10-foot)
If
new interrupts are required, these assignments and connections must
(PWB)
(fine
mount
bus
bus
daisy
daisy
bus
bus
DSI0
Cartridge Disk System Components
line
PWB)
mount
cable
assembly
cable
assembly
chain
cable
assembly
chain
cable
assembly
cable
assembly
cable
assembly
Part Number
937505-0001
2262100-0001
937513-0001
937513-0005
937507-0001
937515-0001
937516-0001
937510-0001
937515-0002
937516-0002
937515-0003
.937516-0003
made during installation.
Also, the following operations must be performed during installation:
• TILINE address switches on the disk controller must be set to the
the software
is
to recognize.
slave
be
address that
• The disk controller must be assigned to a permanent location (slot) in the computer
chassis.
• Daisy-chained disk drives must have their unit designations (0 or 1) set by jumpers on
the disk drive.
SITE REQUIREMENTS
2.2
Certain conditions are prerequisite for installation
disk drive, power for the disk drive, a Model 990 Computer with
of
a disk system including physical space for the
12K
memory, and
an
available
TILINE chassis slot.
MOUNTING SPACE REQUIREMENTS FOR RACK MOUNT DISK DRIVE. The disk
2.2.1
drive is available for mounting in a standard 482.60-millimeter (19-inch) (RETMA) rack.
for the disk drive
the rear
of
cable connection or maintenance.
rack
to
be moved away from any stationary objects far enough for personnel
rear
of
the rack for cable connection
provide the necessary movement must be planned in advance
millimeters (30 inches) must be provided between the front
that
personnel can slide the disk drive
is
stationary, approximately 610 millimeters (24 inches) must be provided between
the rack and any stationary objects (walls, racks, etc.) to permit personnel access for
If
the rack
or
out
is
movable, sufficient space must be provided for the
maintenance.
of
the rack for maintenance and install
If
the rack
is
movable, sufficient cable slack
of
the installation. Approximately
of
the rack and any stationary objects so
to
have access to the
and/or
If
the rack
remove the
disk drive. Figure 2-2 shows the recommended dimensions for rack mounting the disk drive.
2.2.2
MOUNTING SPACE REQUIREMENTS
drive
is
available in a self-contained cabinet. The cabinet
provided for the cabinet
have access
to
the rear
must also be provided
to
be moved away from any stationary objects far enough for personnel to
of
the cabinet for cable connection
to
allow the necessary movement.
FOR
CABINET MOUNT DISK DRIVE. The disk
is
movable, so sufficient space must be
or
maintenance. Sufficient cable slack
to
762
2-2
Digital
Systems Division
N
•
I:H
(A)
143663
Figure 2-1. Model
DSI0
Cartridge Disk System Components
~
946261-9701
~-------
RACK
SLIDE
B
DISK
(SHOWN
OUT
DRIVE
PARTIALJ-,Y
OF
RACK)
SLIDE
NOTE
*
~--~-L-==~~~~=u~--------------------------~~~~
RACK
A
~I
D
NOTE * IF
THE
THIS
THE
A.
THE
DRIVE
DIMENSION
DIMENSION
SLIDE
DISTANCE
RAI
MOUNTING
LS
TO
IS
MOUNTED
FOR"A"IS
CAN
FROM
REAR
IN A CABINET
622.3
BE
ACCOMPLSHED
BRACKETS.
FRONT
MOUNTING
MILLIMETERS
(SEE
MOUNTING
RAI
LS.
WITH A COMPUTER
BY
FIGURE
(24.5
REVERSING
2-21)
546.10
704.85
~21
.50
27.75
INCHES).
ONE
OF
TO
590.55
TO
755.65
TO
28.25
TO
29.75
CHASSIS
OR
IN.)
OR
MM
(A)
1372318
MINIMUM
B.
MOUNTING
C.
DISTANCE
(FRONT
MINIMUM
D.
FRONT
CONNECTOR
CLEARANCE
RAILS
BETWEEN
AND
LENGTH
MOUNTING
Figure 2-2. Recommended Rack Dimensions for Model DSIO Cartridge Disk Drive
(FRONT
REAR).
CLEARANCE).
MOUNTI
OF
RAILS
BETWEEN
AND
CABINET
(CABLE
2-4
REAR).
NG
HOLES
FROM
AND
446.02
(17.56
453.64
(17.86
764.54
(30.10
MM
IN.)
TO
TO
MM
IN.)
471.42
18.56
MM
IN.)
Digital
Systems Division
~-------
~
946261-9701
Space must be provided at the sides
of
the cabinet for maintenance personnel to stand while working
on the drive. Figure
2-3
shows the physical dimensions
of
the cabinet.
2.2.3 AC POWER REQUIREMENTS. The disk system can be ordered configured for operation
from
100
or
110
volts,
60
hertz or
100
or
230
volts,
50
hertz. Any
of
the voltage/frequency combina-
tions listed in Table
1-3
may be selected by following the conversion procedure included in the in-
stallation procedure.
Prior to installation, the site must be prepared to provide the necessary voltage
and current required by the disk drive configuration.
2.2.4 MODEL
990
COMPUTER. The Model DS10 Cartridge Disk System requires a Model 990
Computer with TILINE, an available full-width TILINE chassis slot, and a software operating
system. These must either be ordered with the disk system or provided at the site prior to installation
of
the disk system.
(A)
1372326
--17
755.65
MM
I
469
90
MM
(29.75
IN.)
r
18
:50
IN.)
OVERALL
LENGTH
j
OVERALL
WIDTH
457.20
MM
(18,00
IN.)
31.75MM
(1.25
IN.)
I
863.60
MM
(34.00
IN.)
OVERALL
HEIGHT
501.65MM
(19.75
IN.)
I I
11111111111111
I 1
11111
11111
11111
I!!
IIII!
11111111111111
1111111111111111
Figure 2-3. Physical Dimensions
of
Cabinet Mount
Model
DSIO
Cartridge Disk Drive
2-5
Digital Systems Division
~
946261-9701
~-------
Table 2-2. Site Environmental Requirements for Model DSIO Cartridge
Item
Temperature
Humidity
Altitude
Pressure
16°
to
32°C
(60°
to 90°F) with a maximum gradient
per hour
10
to
90% relative with no condensation
-305 to
1060
maximum gradient
3048
m (-1000 to 10,000 ft.)
to
660 millibars = 793
of
5 mm
Requirement
to
513 mm
Hg
(3l.2
to
20.2 in.)
Disk
of
Hg
System
6.7°C
with
(12
oF)
2.2.5 SUPPORTIVE ENVIRONMENT. Table 2-2 lists the parameters for a supportive operating
environment for the disk system. Prior to installation, it must be ensured that the site meets the
requirements.
2.2.6 CABLING
RESTRICTIONS. Cable lengths affect the positioning
of
the equipment at the
site. The primary disk drive must be positioned so that the 6.10-meter (20-foot) interconnection
cables (cabinet mount) or 3.05-meter (lO-foot) interconnection (rack mount) may be connected to
both the disk drive and computer, and be routed along a convenient out-of-the-way path; they must
have sufficient slack at either end to provide access for maintenance and installation. In like manner, the secondary disk drive,
if
used, must be positioned
so
that the 1.83-meter (6.00-foot) cables
may be connected to both disk drives, and be routed along a convenient out-of-the-way path; they
also must have sufficient slack at either end to provide
~ccess
for maintenance and installation.
2.3
UNPACKING INSTRUCTIONS
The disk drives are shipped in containers as shown in Figures 2-4 and
2-5.
If
the disk drive
is
received
at the same time as the computer system, the disk controller, interconnection cables, and technical
manuals may be
bubble pack and ethafoam in the accessory package shown in Figure
'packed with the computer. Otherwise, these items are packaged in a polyethelene
2-4
(for rack mount) or in a
separate package for the configuration shown in Figure 2-5.
2.3.1
container
notify carrier immediately.
UNPACKING RACK MOUNT DISK DRIVE. Upon receipt
to
ensure
that
no physical damage occurred during shipment.
of
the container, inspect the
If
damage
is
apparent,
WARNING
The unpacked rack mount disk drive weighs approximately
kilograms
(148
quires assistance by another person
hydraulic lift, to avoid the possibility
Save
all shipping materials except where noted for use in reship-
ment
of
unit.
After ensuring
unpack the disk drive according
that
no damage has been done
pounds). When unpacked, handling
or
use
of
a portable hoist
of
back strain.
NOTE
to
the container
to
the following instructions:
or
of
the unit re-
its contents during shipping,
67
or
2-6
Digital
Systems Division
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