Prime Computer 250-II Desktop Manuals

Manuals and User Guides for Prime Computer 250-II Desktop. We have 1 Prime Computer 250-II Desktop manual available for free PDF download: Service Manual

Prime Computer 250-II Service Manual

Prime Computer 250-II Service Manual (339 pages)

Brand: Prime Computer | Category: Desktop | Size: 14 MB

Table of Contents

Table of Contents
7
Hardware Diagnostic Status Registers
12
Chapter 1. General Description

21
Chapter 3. Operating Instructions

115
- Non-FCC Cabinet Status Panel
  115
- Power Distribution Unit Controls and Indicators
  118
- PRIMOS Shut-Down Procedure
  121
- PRIMOS II Shut-Down Procedure
  123
- Removing System Power
  123
- Autoboot to Primos
  124
- Virtual Control Panel (Vcp) Operation
  124
- Controlling Supervisor Terminal Output
  125
- Halting the System
  125
- Master Clearing the System
  126
- Accessing Memory and Register Files
  128
- Memory Addresses
  128
- Data Representation
  128
- Control Panel Commandss
  129
- Memory Display Commands
  130
- Memory Access Commands
  134
- Ccessing Physical (Unmapped) Memory
  135
- Ccessing Virtual (Mapped) Memory
  135
- Accessing Physical Register Files
  135
- Single-Stepping Instructions
  136
- Changing Processor Modes
  136
- Starting a Program (Placing It in "RUN")
  137
- Exiting Control Panel Mode
  138
- CHANGING SUPERVISOR TERMINAL BAUD RATE. Cccccccvccccccccvece
  140
- CENTRAL PROCESSOR UNIT (CPU) Ccccsecccccceccccccscccccescece
  141
- TIMING and CONTROL UNIT. Ccccsccccccccesesensevcsscses
  145
- Arithmetic Unit
  145
- Memory Management. "200
  145
- Operating Modes
  145
- Absolute Addressing
  149
- Virtual (Segmented/Paging) Addressing
  149
- Cache Memory
  151
- CPU Cache Reads
  151
- CPU Cache Writes
  152
- DMX Cache Cycles
  152
- Processor Management
  152
- Process Exchange
  153
- Error Management
  155
- Traps
  155
- Unimplemented Instruction
  156
- Restricted Insstruction
  156
- Tllegal Instruction
  156
- Memory Parity
  157
- Device Driver Pyograms
  160
- Interrupts in Process Exchange Mode
  160
- Interrupt Modes
  160
- Memory Increment Interrupts
  160
- Override Inhibits
  160
- Interrupt Inhibits/Enables
  160
- Highest Priority Active Interrupt
  160
- Output/Input the a Register (OTA/INA)
  168
- Output Control Pulse (OCP)
  169
- Rect Memory Transfer (DMX)
  169
- Direct Memory Accesss (DMA)
  169
- Direct Memory Transfers (DMT)
  169
- Direct Memory Channel (DMC)
  169
- Bits When
  268
- Missing Memory
  269
- Memory Parity
  273
- Machine Check
  274
- BMA Parity
  274
- Cache Data
  274
- Machine Check Code
  295
- Eccc
  295

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