Power managed busses and arbitration

Details Power managed busses and arbitration Power managed busses and arbitration

2007-10-09

2007-10-09

Du, Thuan (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C710S309000

Reexamination Certificate

active

10809970

ABSTRACT:
A variable speed bus has its frequency adjusted based upon bandwidth requirements of active units coupled to a variable speed bus. As units coupled to the bus are stopped, bandwidth requirements are lowered and the bus frequency is reduced in response to the lowered bandwidth requirements. An arbiter selects an appropriate arbitration configuration based on which units are active and which are stopped. The arbitration configuration is adjusted to ensure that the bandwidth requirements of the active units are sustained despite the reduced clock frequency.

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