IBM XT 5160

SECTION 1. SYSTEM BOARD
Description 1-3
Microprocessor 1-4
Data Flow Diagrams 1-5
System Memory Map 1-8
System Timers 1-10
System Interrupts 1-11
System Boards 1-12
RAM 1-12
64/256K System Board 1-12
256/640K System Board 1-13
ROM 1-13
DMA 1-14
I/O Channel 1-15
System Board Diagram 1-19
I/O Channel Description 1-20
I/O·Address Map 1-24
Other Circuits 1-26
Speaker Circuit 1-26
8255A I/O Bit Map 1-27
Specifications 1-29
System Unit 1-29
Size 1-29
Weight 1-29
Power Cable 1-29
Environment 1-29
Heat Output 1-30
Noise Level 1-30
Electrical 1-30
Card Specifications 1-31
Connectors 1-32
Logic Diagrams -
64/256K 1-34
Logic Diagrams -
256/640K 1-46
System Board 1-1