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參數(shù)資料
| 型號： | 9248DF-39LFT |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 150 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | 0.300 INCH, GREEN, SSOP-48 |
| 文件頁數(shù)： | 5/18頁 |
| 文件大小： | 321K |
| 代理商： | 9248DF-39LFT |
13
ICS9248- 39
PCI_STOP# Timing Diagram
PCI_STOP# is an asynchronous input to the ICS9248-39. It is used to turn off the PCICLK (0:4) clocks for low power operation.
PCI_STOP# is synchronized by the ICS9248-39 internally. The minimum that the PCICLK (0:4) clocks are enabled
(PCI_STOP# high pulse) is at least 10 PCICLK (0:4) clocks. PCICLK (0:4) clocks are stopped in a low state and started with
a full high pulse width guaranteed. PCICLK (0:4) 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 ICS9248 device.)
2. PCI_STOP# is an asynchronous input, and metastable conditions may exist. This signal is required to be synchronized
inside the ICS9248.
3. All other clocks continue to run undisturbed.
4. CPU_STOP# is shown in a high (true) state.
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