ZiLOG System 8000 Hardware Reference Manual

HRM Zilog
HRM
3. 5.6. Cable Termination ' 3-27
3.6. Line Printer Installation Procedures 3-28
3.7. System power-Up Diagnostics (SPUD) 3-30
3.8. System Expansion ". 3-35
3.8.1. Installing Additional Terminal Ports 3-35
3.8.2. Adding A Disk Module 3-37
3.8.3. Adding SMD Disk Module #1 to Model 31 3-40
3.8.4. 1 Mbyte Memory Array Board
Segment Setting 3-42
SECTION 11 THEORY OF OPERATION 4-1
4 • 1. Ge n era 1 ".... 4-1
L~.2. System Bus.................................... 4-1
4.3. Bus Conventions 4-1
L~ • 4. Bu s Si gna1 s 4- 2
4.5. Bus Modules oJ............................. 4-9
4.5.1. CPU Module 4-9
4.5.2. Winchester Disk Controller 4-16
4.5.3. Storage Module Device Controller 4-26
4.5.4. Cartridge Tape Controller 4-43
4.5.5. Tape Controller Operation 4-54
4.5.6. Memory Subsystem Controller 4-57
4 • 6. Sy stem Res et It •• , •• 4- 58
4.7. Non-Maskable Interrupts (NMI) 4-58
4 • 7 . 1. Ma nua1 NM I 4- 62
4. 7. 2. Po we r- Fa i I NM I .........•............. :..... 4- 62
4.7.3. ECC Memory Error NMI 4-63
4.7.4. 'NMI Identifier 4-63
4~8·. Vectored Inter~upts i. 4-63
4.9. Memory Management Unit (MMU) ....•............. 4-66
4.9.1. MMU Operation (Non-Segmented) 4-66
4.9.2. MMU Operation (Segmented) 4-67
4.9.3. MMU Configurations ....•.............•.•.. 4-67
4.9.4. Break Registers ....................•..... 4-68
4 • 9 • 5. S ys t em Acce sst 0 Use r Space 4- 6 9
4.9.6. System Segments and Protection 4-70
Sl':C~ION 5 MAINTENANCE................................ 5-1
.. '5.1. Introduction 5-1
5.2. Preventive Maintenance ; 5-1
5 . 3. Ta pe Dr i ve Per i 0 d i c Ma in ten ance ...............' 5- 1
5.3~1. Magnetic Head Cleaning .•...... ~ 5-1
5.3.2. Tape Cleaner Cleaning ......•... ~ ....•.... 5-2
5.3.3. Motor Capstan Cleaning ...•...•.•......... 5-2
5.3.4. Heat Sink, Circuit Board,
Sensor Hole Cleaning ..........••..•......•...... 5-4
5.4. Disk Drive Assembly Cleaning.................. 5-4
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ZiLOG System 8000 Specifications

General

Brand	ZiLOG
Model	System 8000
Category	Desktop
Language	English