Gould 8002 User manual

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Gould Multi-Function Processor
Model 8002
Tedllnical Manual
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Publication Order Number:.30:i.-006540-000
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HISTORY
The Gould Multi-Function Processor Technical Manual, Publication Order Number 303-
006540-000, was printed June, 1987.
This manual contains the following pages:
Title page
Copyright page
iii (iv Blank)
v through xiii (xiv Blank)
1-1 through 1-9 (1-10 Blank)
2-1 through 2-21 (2-22 Blank)
3-1 through 3-13 (3-14 Blank)
4-1 through 4-33 (4-34 Blank)
5-1 through 5-8
6-1 through 6-32
IN-l through IN-4
iii (iv Blank)

TABLE OF CONTENTS
Chapter
Page
List of Illustrations.........................................................................................................................xi
List of
Tables ...............................................................................................................................xiii
1 - General Description
1.1 Introduction .......................................................................................................................... 1-1
1.2 Features ................................................................................................................................. 1-1
1.3 Physical Description............................................................................................................. 1-1
1.3.1 MFP Circuit Card ......................................................................................................1-3
'1.3.2 MFP Device Interface Circuit Card ......................................................................... 1-3
1.3.3 Secondary General Purpose Device Interface Circuit Card ...................................1-6
1.4 Functional Description.........................................................................................................1-6
1.4.1 SCSI
Ports ..................................................................................................................1-8
1.4.2 Asynchronous Communications
Ports ......................................................................1-8
1.4.3
Parallel Printer Port .................................................................................................1-8
1.4.4 System
Timer .............................................................................................................1-8
1.5 Software ................................................................................................................................1-8
1.6 Specifications.........................................................................................................................1-8
2 - Controls, Indicators, and Connectors
2.1 Introduction .......................................................................................................................... 2-1
2.2 Controls, Indicators, and Connectors, MFP Circuit Card ................................................ 2-1
2.2.1 Controls, MFP Circuit Card ..................................................................................... 2-1
2.2.1.1 On Line/Off Line Switch, MFP Circuit Card ............................................. 2-1
2.2.1.2 Jumpers, MFP Circuit Card ........................................................................ 2-1
2.2.2 Indicators, MFP Circuit Card ..................................................................................2-6
2.2.3 Connectors,
MFP Circuit Card.................................................................................2-8
2.2.3.1 Connector
Jl, Address and Control.............................................................. 2-9
2.2.3.2 Connectors J2 and J3, ROM-SIM ................................................................. 2-9
2.2.3.3 Connector J4, Y-Bus ......................................................................................2-9
2.3 Controls, Indicators, and Connectors, MFP DI Circuit
Card ........................................2-12
2.3.1 Jumpers,
MFP DI Circuit Card ..............................................................................2-12
2.3.2 Connectors, MFP
DI Circuit Card .........................................................................2-15
2.3.2.1 Connector
Jl, SCSI Bus 1...........................................................................2-15
2.3.2.2 Connector J2, SCSI Bus 2...........................................................................2-16
2.3.2.3 Connector J3, Asynchronous
Ports 0 - 3...................................................2-17
2.3.2.4 Connector J4, Asynchronous
Ports 4 - 7...................................................2-17
2.3.2.5 Connector J5, External
Interrupts and Clock ..........................................2-18
2.3.2.6 Connector J7, Line
Printer .........................................................................2-19
2.3.2.7 Connector J8, Turnkey Panel ....................................................................2-19
c 3 - Operation
3.1 Introduction .......................................................................................................................... 3-1
3.2 Overview ............................................................................................................................... 3-1
3.3 System Turnkey Panel Mode............................................................................................... 3-1
MFP
Technical Manual Contents v

This manual is supplied without representation or warranty of any kind. Gould Inc., Computer
Systems Division therefore assumes no responsibility and shall have no liability of any kind
arising from the supply or use of this publication
or any material contained herein.
Copyright
1987
Gould Inc., Computer Systems Division
Printed in U.S.A.

TABLE OF CONTENTS (continued)
Chapter
.Page
4.6 I/O Command Doubleword ...............................................................................................4-13
4.6.1
10CD Commands Supported by the MFP ......................·.......................................4-15
4.6.1.1 Channel Control Command........................................................................4-15
4.6.1.2 Write Command..........................................................................................4-16
4.6.1.3 Read Command...........................................................................................4-16
4.6.1.4 Device Control Command ..........................................................................4-16
4.6.1.5 Sense Command ..........................................................................................4-16
4.6.1.6 Transfer-In-Channel Command .................................................................4-17
4.6.2
10CD Real Data Address Fields.............................................................................4-17
4.6.3
10CD Flag Fields .....................................................................................................4-17
4.6.4 10CD Byte Count Field...........................................................................................4-18
4.7
I/O Status Doubleword......................................................................................................4-18
4.7.1 Subaddress................................................................................................................4-19
4.7.2
10CD Address...........................................................................................................4-19
4.7.3
Status Flag Bits .......................................................................................................4-19
4.7.3.1
Post Program Controlled Interrupt.. .........................................................4-19
4.7.3.2 Incorrect Length..........................................................................................4-21
4.7.3.3 Channel Program Check.............................................................................4-21
4.7.3.4 Channel
Data Check...................................................................................4-22
4.7.3.5 Interface Check ...........................................................................................4-22
4.7.3.6 Busy ..............................................................................................................4-22
4.7.3.7
Status Modifier ............................................................................................4-22
4.7.3.8 Controller End.............................................................................................4-22
4.7.3.9
Attention ......................................................................................................4-23
4.7.3.10 Channel End/Device End...........................................................................4-23
4.7.3.11 Unit Check ..................................................................................................4-23
4.7.3.12 Unit Exception ............, ..............................................................................4-23
4.7.4 Remaining Byte Count ............................................................................................4-23
4.8 CPU
Scratch Pad and Interrupt Vectors.........................................................................4-23
4.8.1 CPU Scratch
Pad .....................................................................................................4-24
4.8.1.1 Device
Entry ................................................................................................4-24
4.8.1.2
Interrupt Entry ...........................................................................................4-24
4.8.2
Interrupt Vector Table............................................................................................4-24
4.9
Interrupts ............................................................................................................................4-24
4.9.1
Interrupt States ........................................................................................................4-24
4.9.1.1
Interrupt States, Described ........................................................................4-28
4.9.1.2
Interrupt State Control Flags....................................................................4-30
4.9.1.3 Interrupt State Events ...............................................................................4-31
4.9.2
Interrupt Instructions..............................................................................................4-31
4.9.2.1 Enable Channel
Interrupt ..........................................................................4-32
4.9.2.2 Disable Channel Interrupt ..........................................................................4-32
4.9.2.3 Activate Channel
Interrupt .......................................................................4-32
4.9.2.4 Deactivate Channel
Interrupt ....................................................................4-32
4.10 Special MFP I/O Functionality........................................................................................4-32
4.10.1 Start I/O Queuing...................................................................................................4-32
4.10.2 10CD Prefetching....................................................................................................4-33
4.10.3 Sense Information....................................................................................................4-33
4.10.4 Skip 10CD's .............................................................................................................4-33
MFP
Technical Manual
Contents
vii

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TABLE OF CONTENTS (continued)
Chapter
Page
5 - Real Time Functions
5.1 Introduction .......................................................................................................................... 5-1
5.2 Overview ............................................................................................................................... 5-1
5.3 Real Time Function Interrupts ........................................................................................... 5-1
5.3.1 Scratch Pad Entries................................................................................................... 5-1
5.3.2 Internal Interrupt Polling..........................................................................................5-2
5.3.3 Interrupt Control Instructions...............:..................................................................5-2
5.4 Software Interrupts ..............................................................................................................5-3
5.5 External Interrupts ..............................................................................................................5-3
5.5.1 External Interrupt Input...........................................................................................5-4
5.5.2 External Interrupt Output ........................................................................................5-4
5.6 Interval Timer ......................................................................................................................5-4
5.7 Real Time Clock................................................................................................................... 5-8
6 - I/O Support
viii
6.1 Introduction .......................................................................................................................... 6-1
6.2 Overview ............................................................................................................................... 6-1
6.3 SCSI Support ..................................................................................................................:..... 6-1
6.3.1 SCSI Initialization...................................................................................................... 6-1
6.3.2 SCSI Commands......................................................................................................... 6-3
6.3.2.1 Write (direct and sequential access) ........................................................... 6-3
6.3.2.2 Read (direct and sequential access)............................................................. 6-4
6.3.2.3 Sense (direct and sequen tial access) ............................................................ 6-5
6.3.2.4 Seek {direct access only)............................................................................... 6-5
6.3.2.5 Reassign Block (direct access only) ............................................................. 6-5
6.3.2.6 Write Many Filemarks (sequential access only)......................................... 6-6
6.3.2.7 Rewind {sequential access only)................................................................... 6-6
6.3.2.8 Rezero (direct access only) ........................................................................... 6-6
6.3.2.9 Advance Record (sequential access only)...........:........................................ 6-6
6.3.2.10 Read Capacity {direct access only)............................................................. 6-6
6.3.2.11 Backspace Record (sequential access only) ................................................ 6-6
6.3.2.12 Space One Filemark (sequential access only) ............................................ 6-6
6.3.2.13 Backspace One Filemark (sequential access only)..................................... 6-7
6.3.2.14 Set Mode (sequential access only)............................................................... 6-7
6.3.2.15 Write One Filemark (sequential access only) ............................................ 6-7
6.3.2.16 Reserve Unit (direct and sequential access)............................................... 6-7
6.3.2.17 Inquiry (direct and sequential access) ........................................................ 6-7
6.3.2.18 Release Unit (direct and sequential' access) ............................................... 6-7
6.3.2.19 Transfer Command Packet (direct and sequential access) ...................... 6-8
6.3.2.20 Space Many Filemarks (sequential access only) ........................................ 6-8
6.3.3 Non-Optimized SCSI Support, Class Fl .................................................................. 6-8
6.3.4 Optimized SCSI Support, Class F2.........................................................................6-10
6.3.5 Mixing Class Fl and F2 Protocols..........................................................................6-10
6.4 Line Printer .........................................................................................................·................6-10
6..1.1 Line Printer Control Commands ............................................................................6-12
Contents
MFP
Technical Manual
)

TABLE OF CONTENTS (continued)
Chapter
Page
6.4.1.1 Do Paper Control (Force Print}.................................................................6-12
6.4.1.2 Line Advance Skip
Count ...........................................................................6-12
6.4.1.3 Advance
to Top Of Form ...........................................................................6-14
6.4.1.4 Clear Line
Printer Buffer............................................................................6-14
6.4.2
Paper Control Instruction .......................................................................................6-14
6.4.3 Line
Printer Write Commands ...............................................................................6-15
6.4.3.1 Allow
Paper Control ...................................................................................6-15
6.4.3.2
Post Print .....................................................................................................6-15
6.4.3.3 Line Advance Skip
Count ...........................................................................6-15
6.4.3.4 Advance
To Top Of Form ..........................................................................6-17
6.4.3.5
Clear Line Prin ter Buffer............................................................................6-17
6.4.4 Line
Printer Sense Command .................................................................................6-17
6.4.4.1 Bus
Out Check ............................................................................................6-18
6.4.4.2
Operator Intervention Required ................................................................6-18
6.4.4.3
Command Reject.........................................................................................6-18
6.4.4.4
Top of Form .................................................................................................6-18
6.4.4.5 Beginning
of Form .......................................................................................6-18
6.4.4.6 Off Line.........................................................................................................6-18
6.4.4.7 Device Check ...............................................................................................6-18
6.4.4.8 Device Power ...............................................................................................6-18
6.4.4.9 Device Verify ...............................................................................................6-18
6.4.5 Channel
Status Responses.......................................................................................6-19
6.4.5.1 Normal Completion.....................................................................................6-19
6.4.5.2 Unit Check...................................................................................................6-19
6.4.5.3 Unit Exception..............................................................................................6-19
6.5 Asynchronous
Port Support ...............................................................................................6-19
6.5.1 Asynchronous
Port Write Commands....................................................................6-20
" 6.5.1.1
Write ............................................................................................................6-20
6.5.1.2 Write with Input Subchannel Monitoring..................................................6-20
6.5.1.3 Write with Hardware Flow Control Only.................................................6-21
6.5.2 Asynchronous
Port Read Commands..................................................................... 6-21
6.5.2.1 Read .............................................................................................................6-21
6.5.2.2 Rea.d Echoplex .............................................................................................6-22
6.5.2.3 Read with Flow Control .............................................................................6-22
6.5.2.4 Read with
Hardware Flow Control Only..................................................6-22
6.5.3 Asynchronous
Port Control Commands.................................................................6-22
6.5.3.1 No
Operation ...............................................................................................6-23
6.5.3.2 Sense .............................................................................................................6-23
6.5.3.3 Define Special
Character ............................................................................6-28
6.5.3.4 Reset
Data Terminal Ready ......................................................................6-29
6.5.3.5 Set
Data Terminal Ready ..........................................................................6-29
6.5.3.6 Reset Request
To Send ...............................................................................6-29
6.5.3.7 Set Request To Send...................................................................................6-29
6.5.3.8 Reset Break..................................................................................................6-29
6.5.3.9 Set Break .....................................................................................................6-29
6.5.3.10 Enable
Port Drivers....................................................................................6-30
6.5.3.11 Disable Port Drivers...................................................................................6-30
6.5.3.12 Transparent Flow Control.........................................................................6-30
6.5.3.13 Define Parameters ...................................................................................... 6-31
6.6 Expansion Port ...................................................................................................................6-32
MFP
Technical Manual
Contents
ix (x Blank)
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