ICS954204 Datasheet, PDF (4/16 Pages) Integrated Circuit Systems – Programmable Timing Control HubTM for Mobile P4TM Systems

Integrated
Circuit
Systems, Inc.
ICS954204
General Description
ICS954204 is a CK410M Compliant clock synthesizer. ICS954204 provides a single-chip solution for mobile systems built
with Intel P4-M processors and Intel mobile chipsets. ICS954204 is driven with a 14.318MHz crystal and generates CPU
outputs up to 400MHz. It provides the tight ppm accuracy required by Serial ATA and PCI-Express.
Block Diagram
X1
X2
XTAL
OSC.
FIXED PLL
DIVIDER
PROG.
SPREAD
MAIN PLL
PROG.
DIVIDERS
PCI/SRC_STOP#
CPU_STOP#
FSL(C:A)
ITP_EN
TEST_MODE
VTT_PWRGD#/PD
CLKREQ#A/B
SDATA
SCLK
SelSRC/LCDCLK#
CONTROL
LOGIC
REFOUT
USB_48MHz
DOT_96MHz
PCICLK(5:2)
PCICLK_F(1:0)
SRCCLK(5:1)
CPUCLK2_ITP/SRCCLK7
CPUCLK(1:0)
LCDCLKSS/SRCCLK0
IREF
0933D—03/16/05
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