ics9248-199 Integrated Device Technology, ics9248-199 Datasheet - Page 18
ics9248-199
Manufacturer Part Number
ics9248-199
Description
Frequency Generator For Sis 735/740 With Amd K7 Processor
Manufacturer
Integrated Device Technology
Datasheet
1.ICS9248-199.pdf
(21 pages)
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ICS9248-199
0376E—12/23/02
Notes:
1. All timing is referenced to the Internal CPUCLK (defined as inside the ICS9248-199 device.)
2. PCI_STOP# is an asynchronous input, and metastable conditions may exist. This signal is required to be synchronized
3. All other clocks continue to run undisturbed.
4. CPU_STOP# is shown in a high (true) state.
PCI_STOP# Timing Diagram
PCI_STOP# is an asynchronous input to the ICS9248-199. It is used to turn off the PCICLK clocks for low power
operation. PCI_STOP# is synchronized by the ICS9248-199 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.
inside the ICS9248-199.
18
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