AMD SDA3000AI02BA Arkusz Danych Strona 28

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16 Power Management Chapter 4
AMD Sempron™ Processor Model 10 Data Sheet 31993A-1 September 2004
AMD Preliminary Information
Connect State
Diagram
Figure 6 below and Figure 7 on page 17 show the Northbridge
and processor connect state diagrams, respectively.
.
Figure 6. Northbridge Connect State Diagram
Condition
1 A disconnect is requested and probes are still pending.
2 A disconnect is requested and no probes are pending.
3 A Connect special cycle from the processor.
4 No probes are pending.
5 PROCRDY is deasserted.
6 A probe needs service.
7 PROCRDY is asserted.
8
Three SYSCLK periods after CLKFWDRST is deasserted.
Although reconnected to the system interface, the
Northbridge must not issue any non-NOP SysDC
commands for a minimum of four SYSCLK periods after
deasserting CLKFWDRST.
Action
A
Deassert CONNECT eight SYSCLK periods
after last SysDC sent.
BAssert CLKFWDRST.
C Assert CONNECT.
D Deassert CLKFWDRST.
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