Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2008-01-01
2008-01-01
Cao, Chun (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
C713S323000
Reexamination Certificate
active
07315953
ABSTRACT:
A connected indicator wire of open-drained configuration is set between a north bridge and a south bridge. When either the south or north bridge is handling a bus master request, a bus master indicator (BMI) signal is asserted to the connected indicator wire. With open-drained configuration, the signal of the connected indicator wire is capable of reflecting whether a BMI signal is asserted, and accordingly, the south bridge controls the CPU to switch between power saving states for responding to the bus master request. The CPU does not have to resume a full-function power state to coordinate a bus master service.
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Huang Cheng-Wei
Lin Ruei-Ling
Su Yao-Chun
Wei Jui-Ming
Cao Chun
Hsu Winston
VIA Technologies Inc.
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