954226 Datasheet, PDF (6/22 Pages) Integrated Device Technology – Programmable Timing Control HubTM for Mobile P4TM Systems

954226
Programmable Timing Control Hub^TM for Mobile P4^TM Systems
General Description
The ICS954226 is a CK410M compatible clock synthesizer. It provides a single-chip solution for mobile systems built with
Intel P4-M processors and Intel mobile chipsets. The device 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
PCI/SRC_STOP#
CPU_STOP#
FSL(C:A)
ITP_EN
TEST_MODE
TEST_SEL
VTT_PWRGD#/PD
PEREQ#(2:1)
SDATA
SCLK
SELPCIEX_LCDCLK#
REQ_SEL
CONTROL
LOGIC
PROG.
DIVIDERS
REF(1:0)
USB_48MHz
DOT_96MHz
PCICLK(5:2)
PCICLK_F(1:0)
PCIEX(5:1)
CPUCLK2/PCIEX6
CPUCLK(1:0)
LCDCLK_SS/PCIEX0
SATACLK
IREF
IDT^® Programmable Timing Control Hub^TM for Mobile P4^TM Systems
6
0930A—04/13/10