IBM 560E manual Description, The IBM Personal System/2 Hardware Interface Technical Reference

Description

The IBM Personal System/2 Hardware Interface Technical Reference

describes devices common	to	the PS/2* AT-bus	system	family.
The IBM ThinkPad 560/560E computer (hereafter			called	the	560,
ThinkPad computer, orcomputer)	is	a notebook-size	computer		that

features the AT* bus architecture. Each computer supports one external diskette drive and one internal hard disk drive.

Programs can distinguish the foregoing models of computers from other ThinkPad models by reading the system ID: Interrupt 15H, function code (AH)=23H, (AL)=10H, returns (AL)=0EH for the 560/560E.

The system microprocessor contains an internal cache and cache controller.

Figure 1-1		lists	the model bytes, submodel bytes, and system clock
speed	of	the	system board.
Model		Model Byte	Submodel Byte	System	Clock
		(Hex)	(Hex)
560/560E		FC	01	66 MHz	/ 60 MHz
Figure	1-1. Model		and Submodel Bytes

For a listing of the other systems,IBM Personalrefer to the System/2 and Personal Computer BIOS Interface.

1-2ThinkPad 560/560E System Overview