HP 7942 Service Manual page 7

Section I
GENERAL INFORMATION
Introduction
Documentation
Related Manuals
Options
Ch a r act e r i s t
il
c s
Section II
CHANNEL INTERFACE
Introduction ...... .
CS/80 Instruction Set
Transaction Structure
Real Time Commands
Complementary Commands
General Purpose Commands
Diagnostic Commands ..
Transparent Messages .
Hewlett-Packard Interface Bus
HP-IB Communications
Channel Management
Paralll~l
Poll
Universal Device Clear
Message Structure
Section III
THEOR Y OF OPERATION
Introduction
Disc Drive Introduction
Disc Format . . . . . . . . .
HOC peA-AS . . . . . . . . . .
HOC Internal Bus Architecture
HP-IB Data Bus . . . . . . . . .
RAM Data Bus .
Microprocessor Address Bus
Microprocessor Data Bus
DMA Gate Array Data Bus
Read/Write Data Bus
Data/Control Interface Bus
Control/Status Data Bus
Control/Status Read Strobe
Control/Status Write Strobe
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