Chapter 1
Chapter 2
Chapter 6
Contents
Chapter 3
Chapter 5
System Board
Chapter 3
LS PRO HARDWARE TECHNICAL REFERENCE 3/1
Contents
3
SYSTEM BOARD
3.1 Introduction
............................3/2
General ...................................... 3/2
System Identification Number
(SIN) ....................................... 3/2
Major components ............ 3/2
Description .............................. 3/4
Coprocessor ....................... 3/4
System reset ........................ 3/4
3.2 Processor system
................3/5
80386SX processor features. 3/5
486SLC processor features.3/5
Address and data bus
structure ................................... 3/5
Software compatibility ........ 3/5
Modes of operation .............. 3/5
3.3 SCAMP
...................................3/6
Memory controller ........... 3/6
System control port B ..... 3/6
Interrupt structure ............... 3/6
List of hardware interrupts 3/7
Non-Maskable Interrupts 3/8
Direct Memory Access ....... 3/8
Address generation .......... 3/8
System timers ......................... 3/9
Operation ............................. 3/9
3.4 System memory
.................3/10
General ................................... 3/10
Read only memory (ROM) .. 3/10
Random access memory
(RAM) ..................................... 3/10
Real time clock (RTC)RAM . 3/11
Contents of RTC RAM .... 3/11
3.5 Video adapter
.....................3/14
General ................................... 3/14
Video controllers ........... 3/15
3.6 Floppy disk controller
.......3/15
General ................................... 3/15
Drive formats ...................... 3/15
3.7 Hard disk interface
............3/16
General ................................... 3/16
Interface signal descriptions 3/16
3.8 Peripherals controller
.......3/17
Serial ports ............................ 3/17
Programmable baud-rate
generator ........................... 3/17
Parallel port .......................... 3/18
3.9 Keyboard/mouse
controller
............................3/18
General ................................... 3/18
Keyboard password security . 3/18
3.10 LOC Technology
................3/19
3.11 Ethernet port
.......................3/19
General ................................... 3/19
82596 LAN coprocessor .. 3/20
82C503 dual serial
transceiver ........................ 3/20
7997 ..................................... 3/20
3.12 Apricot Business Audio
....3/21
3.13 System board connectors
..3/21
Hard disk drive connectors . 3/21
Control Connector ....... 3/21
Power connector ........... 3/22
Floppy drive connector ... 3/22
System board power
connector .............................. 3/22
Battery jumper .................... 3/22
Содержание Apricot LS Pro
Страница 1: ...apricot HARDWARE TECHNICAL REFERENCE MITSUBISHI ELECTRIC LS Pro ...
Страница 2: ...HARDWARE TECHNICAL REFERENCE ...
Страница 6: ...CONTENTS ...
Страница 9: ...Chapter 1 INTRODUCTION ...
Страница 14: ...Chapter 2 SYSTEM UNIT ...
Страница 37: ...Chapter 3 SYSTEM BOARD ...
Страница 60: ...Chapter 4 PERIPHERAL ITEMS ...
Страница 91: ...Chapter 5 MEMORY AND I O USAGE ...
Страница 118: ...Appendix A SPECIFICATIONS ...
Страница 125: ...Appendix B REVISION C SYSTEM BOARD ...
Страница 130: ...ERROR BEEP CODES Appendix C ...
Страница 134: ...INDEX ...