IBM AT 5170 Manuals

Manuals and User Guides for IBM AT 5170. We have 1 IBM AT 5170 manual available for free PDF download: Technical Reference

IBM AT 5170 Technical Reference

IBM AT 5170 Technical Reference (500 pages)

Brand: IBM | Category: Desktop | Size: 17.16 MB

Table of Contents

Table of Contents

9
Section 1. System Board

17
- Memory
  20
- Microprocessor
  20
- Real Address Mode
  20
- Protected (Virtual Address) Mode
  21
- System Performance
  23
- Direct Memory Access
  25
- Directmemory Access
  25
- System Interrupts
  28
- Hardware Interrupt Listing
  29
- Design Overview
  30
- Interrupt Sharing
  30
- Program Support
  31
- Precautions
  33
- Examples
  34
- System Timers
  38
- ROM Subsystem
  39
- System Clock
  39
- I/Ochannel
  40
- RAM Subsystem
  40
- 110 Channel
  41
- Connectors
  41
- 110 Channel Signal Description
  47
- I/O Channel Signal Description
  47
- NMI and Coprocessor Controls
  54
- Other Circuits
  56
- RAM Jumpers
  56
- Speaker
  56
- Display Switch
  57
- Variable Capacitor
  57
- Keyboard Controller
  58
- Keyboard Controller Initialization
  58
- Receiving Data from the Keyboard
  59
- Scan Code Translation
  59
- Inhibit
  64
- Keyboard Controller System Interface
  64
- Sending Data to the Keyboard
  64
- Status Register
  65
- Status-Register Bit Definition
  65
- Commands (I/O Address Hex 64)
  67
- Input Buffer
  67
- Output Buffer
  67
- I/O Ports
  70
- Real-Time Clock Information
  72
- Real-Time Clock/Cmos RAM Information
  72
- CMOS RAM Configuration Information
  75
- Operations
  84
- Environment
  85
- Power Cables
  85
- Size
  85
- Specifications
  85
- System Unit
  85
- Weight
  85
- Electrical
  86
- Heat Output
  86
- Noise Level
  86
- Connectors
  87
- Logic Diagrams - Type 1
  92
- Logic Diagrams - Type 2
  114
- Section 2. Coprocessor
  135
- Description
  137
- Programming Interface
  137
- Hardware Interface
  138
Section 3. Power Supply

141
- Inputs
  143
- DC Output Protection
  144
- Output Voltage Sequencing
  144
- Outputs
  144
- Load Resistor
  145
- No-Load Operation
  145
- Power-Good Signal
  145
- Connectors
  147
Section 4. Keyboard

149
- Description
  151
- Keyboard Buffer
  151
- Sequencing Key Code Scanning
  151
- Keys
  152
- Power-On Reset
  152
- Power-On Routine
  152
- Basic Assurance Test
  153
- Commands from the System
  153
- Reset (Hex FF)
  153
- Default Disable (Hex F5)
  154
- No-Operation (NOP) (Hex FD through F7)
  154
- Resend (Hex FE)
  154
- Set Default (Hex F6)
  154
- Enable (Hex F4)
  155
- Set Typematic Rate/Delay (Hex F3)
  155
- Echo (Hex EE)
  156
- No-Operation (NOP) (Hex F2 through EF)
  156
- Set/Reset Mode Indicators (Hex ED)
  156
- Commands to the System
  157
- Resend (Hex FE)
  157
- Ack(Hexfa)
  158
- BAT Completion Code (Hex AA)
  158
- Break Code Prefix (Hex FO)
  158
- Diagnostic Failure (Hex FD)
  158
- ECHO Response (Hex EE)
  158
- Overrun (Hex 00)
  158
- Keyboard Scan-Code Outputs
  159
- Clock and Data Signals
  160
- Keyboard Layouts
  163
- Specifications
  170
Section 5. System BIOS

173
- System BIOS Usage
  175
- Parameter Passing
  176
- Vectors with Special Meanings
  178
- Other Read/Write Memory Usage
  180
- BIOS Programming Hints
  182
- Adapters with System-Accessible ROM Modules
  184
- Additional System Board ROM Modules
  185
- Keyboard Encoding and Usage
  185
- Character Codes
  186
- Extended Functions
  190
- Shift States
  191
- Special Handling
  193
- Quick Reference
  196
Section 6. Instruction Set

369
- 80286 Instruction Set
  371
- Arithmetic
  374
- Logic
  377
- String Manipulation
  379
- Control Transfer
  381
- Processor Control
  385
- Protection Control
  386
- 80287 Coprocessor Instruction Set
  390
- Data Transfer
  390
- Comparison
  391
- Constants
  392
- Arithmetic
  393
- Transcendental
  394
- Section 7. Characters, Keystrokes, and Colors
  399
- Character Codes
  401
- Quick Reference
  412
Section 9. Ibm Personal Computer Compatibility

427
- Hardware Considerations
  429
- System Board
  429
- Copy Protection
  431
- Diskette Drive Compatibility
  431
- Fixed Disk Drive
  431
- Bypassing BIOS
  432
- Diskette Drive Controls
  432
- Application Guidelines
  433
- High-Level Language Considerations
  433
- Write Current Control
  433
- Assembler Language Programming Considerations
  434
- Interfaces
  442
- Multitasking Provisions
  442
- Classes
  443
- Time-Outs
  444

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