Intel INTELLEC Manuals

Manuals and User Guides for Intel INTELLEC. We have 1 Intel INTELLEC manual available for free PDF download: Hardware Reference Manual

Intel INTELLEC Hardware Reference Manual

Intel INTELLEC Hardware Reference Manual (137 pages)

DOUBLE DENSITY, DISKETTE OPERATING SYSTEM

Brand: Intel | Category: Desktop | Size: 4.47 MB

Table of Contents

Table of Contents
4
Introduction
9
1.1 System Overview
9
The Channel Board
9
Diskette Drive Performance Specifications
11
1.2 Recording Format
12
- Track Format
  13
1 Introduction

14
- Data Address Mark
  14
- Deleted Data Address Mark
  14
- Physical Data Format
  14
- Byte Representation
  15
- Data Bytes
  15
- Bit Cell
  16
- Data Bit
  16
- ID Address Mark
  18
- Index Address Mark
  18
- Data Address Mark
  19
- Deleted Data Address Mark
  19
- Operational Summary and Programming Considerations
  21
- Diskette Operations
  25
  - Read Result Byte
    26
  - Sector Format
    27
2 Operational Summary and Programming Considerations

27
- I/O Parameter Block
  29
  - I/O Parameter Block (Iopb) Format
    29
- Interrupt Control Bits
  29
  - Seek
    30
  - Format
    30
  - Recalibrate
    30
- Error Indications
  31
- Functional Organization of the Channel Board
  33
  - Channel Board
    33
  - Channel Command Block
    34
3 Channel Board

34
4 Interface Board

56
- Interface Board: Functional Block Diagram
  57
- Theory of Operation: Interface Board
  58
  - Disk Drive Control
    58
  - Head Movement Control Timing
    60
  - Write Data Generator
    61
  - Read Initiate Timing
    61
  - Serial Data/Clock Synchronization
    64
  - Cyclic Redundancy Check
    64
  - Bus Control
    67
  - Bus Control Timing
    68
- Schematics/Pin Lists: Interface Board
  69
  - Clk1/ and Clk2/ Timing
    69
- Pin List: P1 Bus Connector
  70
- J1 Drive Connector
  73
- Functional Description
  83
5 Diskette Drives

83
- 5.2 Performance Characteristics
  84
  - 5.2.1 Recording Characteristics
    84
  - 5.2.2 Bit Transfer Rate
    84
  - Data Capacity
    84
  - Latency Time
    85
  - Positioning Characteristics
    85
  - Fdd Start and Stop Time
    85
  - Error Recovery
    85
  - Environmental Limits
    86
  - Write Protect
    86
- Interface Specifications
  86
  - Fdd Driver/Receiver Circuits
    89
  - Write Data Timing
    90
- Diskette Cartridge Storage and Handling
  91
- 5.5 Diskette Cartridge Write Protect Notch
  93
- 5.6 Additional Information
  93
- Diskette System Microprogram
  95
- Introduction
  95
  - Microprogram Module Description
    95
  - Load Ma Lower
    98
  - Load Ma Upper and Start I/O
    99
  - Iopb Loader/Op Decode
    101
  - Verify/Read
    108
  - Write Deleted/Write
    109
  - Address Parameter Checker
    110
  - Read Next Memory Word
    111
  - Write Data Field
    112
  - Write Current Check
    113
  - Address Mark Detect
    115
  - Head Stepper
    116
  - Read Disk Byte
    117
  - Process Address Field
    118
  - Write Address Field
    119
- Utilization
  121
- 7.1 Environmental Extremes
  121
- 7.2 Mounting Recommendations
  121
- Base Address Selection
  122
- Interrupt Level Selection
  122
  - Connectors on the Channel and Interface Boards
    123
7 Utilization

123
- Operating Characteristics
  125
- Ac Characteristics
  125
8 Operating Characteristics

126
- Slave Command Timing - Fdcc
  126
- Diskette Operating System/Intellec Bus Ac Characteristics
  126
  - Bus Exchange Timing
    127
- DC Characteristics
  133
- Diskette Operating System DC Characteristics (Intellec Bus)
  133
- Interface)
  133

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