IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)

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Unit Specifications Appendix E
Usage (Keyboard) 3-17
Use of BIOS 3-2
User Interface (Cassette) 2-19
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Vectors
(O-7F Interrupt) 3-21
(Interrupt Listing) 3-3
Vectors With Special Meaning
Interrupt 1 CH Timer Tick 3-5
Interrupt IDH Video Parameters 3-5
Interrupt lEH Diskette Parameters 3-5
Interrupt 1 FH Graphics Character Extensions 3-6
Other Read/Write Memory Usage 3-6
Vertical Drive 2-43
Video
Monitor 2-62
(Reverse) 2-45 ~
Signal 2-43
Voltage Interchange Information 2-128
Voltage
Power Supply 2-33
I/O Channel 2-8
System Board I/O Channel Description 2-10
Keyboard Interface Connector Specifications 2-18
Cassette Interface Connector Specifications 2-21
Speaker Interface 2-22
Power Supply 2-33
Power Supply Location 2-34
Important Operating Characteristics 2-36
Color Graphics Monitor Adapter Direct Drive and
Composite Interface Pin Assignment 2-62
Color/Graphics Monitor Adapter Auxiliary Video
Connectors 2-62
Printer Specifications 2-71 ~
Game Controller Adapter (Analog Input) Connector
Specifications 2-122
Voltage Interchange Information, Asynchronous Communications
Adapter 2-128
Selecting the Interface Format, Asynchronous Communications
Adapter 2-146
1-20