3

ICS94222

Advance Information

This document is confidential and should not be released

without written consent from ICS.

General Description

The ICS94222 is a single chip clock solution for desktop designs using the BX/Apollo Pro133/ALI 1631 style chipset. It provides all

necessary clock signals for such a system.

as a vehicle for changing output functions, changing output frequency, configuring output strength, configuring output to output skew,

changing spread spectrum amount, changing group divider ratio and dis/enabling individual clocks. This device also has ICS

propriety 'Watchdog Timer' technology which will reset the frequency to a safe setting if the system become unstable from over

clocking.

Mode Pin - Power Management Input Control

E

D

O

M

)

t

u

p

n

I

d

e

h

c

t

a

L

(

3

n

i

P

0

#

P

O

T

S

_

I

C

P

)

t

u

p

n

I

(

1

0

F

E

R

)

t

u

p

t

u

O

(

Power Groups

AVDD48 = 48MHz, Fixed PLL

AVDD = CPU PLL, XTAL