參數(shù)資料
型號(hào): ICS950104yFT
英文描述: Programmable System Clock Chip for PIII Processor
中文描述: 可編程系統(tǒng)時(shí)鐘芯片的PIII處理器
文件頁(yè)數(shù): 16/19頁(yè)
文件大小: 222K
代理商: ICS950104YFT
16
ICS950104
Advance Information
Third party brands and names are the property of their respective owners.
PCI_STOP# Timing Diagram
PCI_STOP# is an asynchronous input to the
ICS94252
. It is used to turn off the PCICLK clocks for low power operation.
PCI_STOP# is synchronized by the
ICS94252
internally. The minimum that the PCICLK clocks are enabled (PCI_STOP# high
pulse) is at least 10 PCICLK clocks. PCICLK clocks are stopped in a low state and started with a full high pulse width guaranteed.
PCICLK clock on latency cycles are only one rising PCICLK clock off latency is one PCICLK clock.
Notes:
1. All timing is referenced to the Internal CPUCLK (defined as inside the ICS94252 device.)
2. PCI_STOP# is an asynchronous input, and metastable conditions may exist. This signal is required to be synchronized
inside the ICS94252.
3. All other clocks continue to run undisturbed.
4. CPU_STOP# is shown in a high (true) state.
CPUCLK
(Internal)
PCICLK_F
(Internal)
PCICLK_F
(Free-running)
CPU_STOP#
PCICLK
PCI_STOP#
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