參數(shù)資料
型號(hào): 950812YGLFT
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時(shí)鐘產(chǎn)生/分配
英文描述: 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56
封裝: 6.10 MM, 0.50 MM PITCH, GREEN, MO-153, TSSOP-56
文件頁(yè)數(shù): 18/30頁(yè)
文件大?。?/td> 227K
代理商: 950812YGLFT
IDTTM Frequency Generator with 200MHz Differential CPU Clocks
0542J—01/25/10
ICS950812
Frequency Generator with 200MHz Differential CPU Clocks
25
The impact of asserting the PCI_STOP# signal will be the following. All PCI[6:0] and stoppable PCI_F[2,0] clocks will latch low
in their next high to low transition. The PCI_STOP# setup time tsu is 10 ns, for transitions to be recognized by the next rising
edge.
PCI_STOP#
PCI_F[2:0] 33MHz
PCI[6:0] 33MHz
tsu
Assertion of PCI_STOP# Waveforms
PCI_STOP# - Assertion (transition from logic "1" to logic "0")
CPU_STOP# - Assertion (transition from logic "1" to logic "0")
Assertion of CPU_STOP# Waveforms
CPU_STOP# Functionality
#
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The impact of asserting the CPU_STOP# pin is all CPU outputs that are set in the I
2C configuration to be stoppable via
assertion of CPU_STOP# are to be stopped after their next transition. When the I
2C Bit 6 of Byte 1 is programmed to '0' the final
state of the stopped CPU signals is CPU = High and CPU# = Low. There is to be no change to the output drive current values.
The CPU will be driven high with a current value equal to (Mult 0 'select') x (Iref), the CPU# signal will not be driven . When the
I
2C Bit 6 of Byte 1 is programmed to '1' then final state of the stopped CPU signals is Low, both CPU and CPU# outputs will not
be driven.
CPU_STOP#
CPUCLKT
CPUCLKC
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