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Control Data Manuals
Controller
3234 Series
Hardware reference manual
Control Data 3234 Series Hardware Reference Manual
Mass storage controllers
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Contents
Table of Contents
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Table of Contents
Table of Contents
1 General Description
Introduction
Functional Description
Subsystem Configuration
Controller
Peripheral Storage Devices
Data Format
Sector Format
Checkword
Data Transfer
Access Time
2 Operation and Programming
Connect Code (Nodu)
Function Codes
Status Codes
Lost Data
No Compare
Checkword Error
End of Record
Write Lockout on Read (Normal)
Write Lockout on Write (Abnormal)
Abnormal End of Operation Interrupt
End of Operation Interrupt
Positioner Ready
Reserved
Seek Interrupt
Programming Considerations
Connect
Simultaneous Connect
Mode Restrictions
Defective Track
Master Clear, Release and
Restore (Strip File)
Interrupts
Abnormal EOP Interrupt
Seek/Sector Verification
Overlap Seek
Seek Interrupts
And 4X F Unction Codes
Records
System Errors and Performance
Addressing
Strip File 2
Disk Storage Drives
Unsafe Conditions
Sector Timing
Buffer Timing
Manual Operations
Power Sequence
Loading and Unloading Procedures
Ready State
Procedures for Writing Address Headers
Procedures for Writing Data
Sample Program Routines
Program Sequence
Program a
Program B
3 Switches and Indicators
Maintenance Panel
CONTROL a and CONTROL B
Logical/Physical Units
Device Select
Register Select
Register Indicators/Switches
Defective Sector
Ta (Write)
Data (Read)
Header
Write Lockout
Track
Cyl/Strip
File/Cell
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CONTROL DATA
.--.-
..
CONTROL
DATA®
3234 MASS STORAGE CONTROLLERS
HARDWARE REFERENCE MANUAL
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Connect Code (Nodu)
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Table of Contents
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This manual is also suitable for:
3234-a
3234-b
3234-c
3234-d
3234-e
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