參數(shù)資料
型號(hào): IDTCV142PAG
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時(shí)鐘產(chǎn)生/分配
英文描述: 400 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56
封裝: GREEN, TSSOP-56
文件頁數(shù): 8/20頁
文件大?。?/td> 111K
代理商: IDTCV142PAG
COMMERCIALTEMPERATURERANGE
16
IDTCV142
PROGRAMMABLEFLEXPCCLOCKFORP4PROCESSOR
CPU STOP FUNCTIONALITY
The CPU_STOP# signal is an active low input controlling the CPU outputs. This signal can be asserted asynchronously.
CPU_STOP# ASSERTION (TRANSITION FROM ‘1’ TO ‘0’)
AssertingCPU_STOP#pinstopsallCPUoutputsthataresettobestoppableaftertheirnexttransition.WhentheSMBusCPU_STOPtri-statebitcorresponding
to the CPU output of interest is programmed to a ‘0’, CPU output will stop CPU_True = High and CPU_Complement = Low. When the SMBus CPU_STOP#
tri-state bit corresponding to the CPU output of interest is programmed to a ‘1’, CPU outputs will be tri-stated.
CPU_STOP# - DE-ASSERTION (TRANSITION FROM ‘0’ TO ‘1’)
With the de-assertion of CPU_STOP# all stopped CPU outputs will resume without a glitch. The maximum latency from the de-assertion to active outputs
is two to six CPU clock periods. If the control register tristate bit corresponding to the output of interest is programmed to ‘1’, then the stopped CPU outputs will
be driven High within 10nS of CPU_STOP# de-assertion to a voltage greater than 200mV.
CPU_STOP#
CPU
CPU#
CPU_STOP#
CPU
CPU#
CPU Internal
tDRIVE_CPU_Stop
10nS > 200mV
CPU_STOP#
CPU
CPU#
SRC
SRC#
PCIF/PCI
USB
DOT96
DOT96#
REF
1
Normal
33MHz
48MHz
Normal
14.318MHz
0IREF * 6 or float
Low
Normal
33MHz
48MHz
Normal
14.318MHz
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