參數(shù)資料
型號: 952601YFLFT
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時鐘產(chǎn)生/分配
英文描述: PROC SPECIFIC CLOCK GENERATOR, PDSO56
封裝: 0.300 INCH, 0.25 INCH PITCH, ROHS COMPLIANT, MO-118, SSOP-56
文件頁數(shù): 15/25頁
文件大小: 227K
代理商: 952601YFLFT
IDTTM
Progammable Timing Control HubTM for Next Gen P4TM Processor
701J—01/25/10
ICS952601
Programmable Timing Control HubTM for Next Gen P4TM Processor
22
PCI_STOP Asserted
SRC_Stop = Tristate, SRC_Pwrdwn = Tristate
PCI_Stop#
1.8mS
PWRDWN#
PCI (Free Running)
CPU (Free Running)
CPU# (Free Running)
SRC (Stoppable)
SRC# (Stoppable)
Notes:
1. When SRC_Pwrdwn and SRC_Stop are set to tristate, the clock chip will tristate outputs during the assertion of PCI_Stop#
and PWRDWN#.
2. In the case that PCI_Stop# is de-asserted during the 1.8mS PWRDWN# de-assertion resume delay, the clock chip can
sample the PCI_Stop# high with the internal rising edges of CPU clock#. This will result in SRC clocks resuming
immediately after the 1.8mS window expires. This applies to all control register bit changes as well.
3. Tristate outputs are pulled low by output termination resistors as shown here.
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