Method for PCI Express power management using a PCI PM...

Electrical computers and digital processing systems: support – Computer power control – By external command

Reexamination Certificate

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C713S300000, C710S100000

Reexamination Certificate

active

10604440

ABSTRACT:
A method for PCI ExpressPower Management using a PCI PM mechanism in a computer system. The computer system includes a PCI PME (Power Management Event) controller and a PCI Express Root Complex. The method includes converting a plurality of PM_PME packets generated by the PCI Express Root Complex into a Pseudo-PME signal, a first PM_PME packet of the plurality of PM_PME packets asserting the Pseudo-PME signal. A Pseudo-PME line electrically connected with a PME input of the PCI PME controller and the PCI Express Root Complex is provided for transmitting the Pseudo-PME signal to the PCI PME controller. The PME input receives PME signals generated by PCI-compliant devices through a PCI Bus of the computer system. The method further includes de-asserting the Pseudo-PME signal. The de-assertion of the Pseudo-PME signal follows the assertion of the Pseudo-PME signal by a predetermined time interval.

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