Lenovo ThinkPad 560E TP 560Z Technical Reference Manual - Page 9

System Board Devices and Features, IBM Personal System/2 Hardware Interface Technical Reference

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System Board Devices and Features Figure 1-2 lists the system board devices and their features. The IBM Personal System/2 Hardware Interface Technical Reference describes devices common to PS/2 products by type number. Device Microprocessor Level 2 cache System timers ROM subsystem RAM subsystem CMOS RAM subsystem Type - - 1 - - - Features Intel® Mobile Pentium® II Processor 233/300 MHz 32 KB on-chip cache 512 KB Channel 0: system timer Channel 1: refresh generation Channel 2: tone generator for speaker 128 KB by 4 banks (1 KB equals 1024 bytes) 32 MB. Expandable up to 96 MB. 64 MB. Expandable up to 128 MB. 128 bytes CMOS RAM with real-time clock/calendar Figure 1-2 (Part 1 of 2). System Board Devices and Features ThinkPad 560Z System Overview 1-3

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System Board Devices and Features
Figure
1-2 lists the system board devices and their features.
The
IBM Personal System/2 Hardware Interface Technical Reference
describes devices common to PS/2 products by type number.
Figure
1-2 (Part 1 of 2). System Board Devices and Features
Device
Type
Features
Microprocessor
Intel
Mobile Pentium
II Processor
±
233/300 MHz
±
32 KB on-chip cache
Level 2 cache
512 KB
System timers
1
Channel 0:
system timer
Channel 1:
refresh generation
Channel 2:
tone generator for speaker
ROM subsystem
128 KB by 4 banks (1 KB equals 1024 bytes)
RAM subsystem
32 MB.
Expandable up to 96 MB.
64 MB.
Expandable up to 128 MB.
CMOS RAM
subsystem
128 bytes CMOS RAM with real-time
clock/calendar
ThinkPad 560Z System Overview
1-3