User Guide

1-12 Chapter 1
¯ System block diagram
Fig. 1-4 System block diagram
Pentium  Processor
3.3V
Host BUS
Data
Address
Control
Ctrl Addr
Second
Level Cache
PCI BUS
Ctrl
Tag Ctrl
TIO[0..7]
Control
Address/Data
Universal Serial Bus
ISA BUS
Fast
IDE
PIIX4
Main
Memory
(DRAM)
CACHE
(SRAM)
TAG
MTXC
CD ROM &
Hard Disk
USB
1
USB
2
PCI Device(s)
Winbond
W83977
ISA Device(s)
Serial
LPT
FDC