Method of power management of a central processing unit...

Details Method of power management of a central processing unit... Method of power management of a central processing unit...

2005-12-27

2009-12-15

Lee, Thomas (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Reexamination Certificate

active

07634669

ABSTRACT:
A method of power management of a CPU connects to a plurality of host bridges. The method is applied to a CPU connecting to the host bridges. When the host bridges are detected as no bus master signal being received, a command is transmitted to force the host bridges not to transmit the bus master signal to the CPU when they receive the bus master signal. After the CPU enters the C3 state, if the host bridges are detected that any one of the host bridges receives the bus master signal, the CPU is forced to quit the C3 state, and the host bridges are forced to transmit the bus master signal to the CPU.

REFERENCES:
patent: 6070215 (2000-05-01), Deschepper et al.
patent: 6079022 (2000-06-01), Young
patent: 6125450 (2000-09-01), Kardach
patent: 7155618 (2006-12-01), Moyer et al.
patent: 528945 (2003-04-01), None
Hamacher, C., et al.; “Computer Organization”; McGraw-Hill Companies, Inc.; 2002; pp. 216 and 217.

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