Dynamic clocking apparatus and system for reducing power dissipa

Details Dynamic clocking apparatus and system for reducing power dissipa Dynamic clocking apparatus and system for reducing power dissipa

1998-03-25

2000-12-19

Chin, Stephen

Pulse or digital communications

Synchronizers

713600, H04L 700

Patent

active

061635839

ABSTRACT:
A dynamic clocking computer system for a processor. The dynamic clocking computer system comprises a clock divider circuit, a multiplexer, and a state machine circuit. The clock divider circuit receives a first clock and outputs the first clock and generates a second clock. The second clock is supplied to external circuitry. The state machine circuit is coupled to the clock divider circuit and receives the first and second clocks from the clock divider circuit. The state machine circuit also receives an external access signal indicating an internal clock to select from the first and second clocks. In response to the external access signal, the state machine circuit generates a select signal to enable the multiplexer to select an internal clock. When the selected internal clock is the second clock, the internal clock is synchronized to the second clock. The multiplexer is coupled to the clock divider circuit and receives the first and second clocks through the clock divider circuit. In response to the select signal generated by the state machine circuit, the multiplexer selects an internal clock from the first and second clocks. The internal clock is then provided to the processor. By thus providing a lower clock frequency to the processor for external access operations, the present invention reduces power dissipation.

REFERENCES:
patent: 5666522 (1997-09-01), Klein
patent: 5978926 (1999-11-01), Ries et al.
patent: 6005904 (1999-12-01), Knapp et al.
patent: 6035357 (2000-03-01), Sakaki

Affiliated with

Also associated with

Rating

Dynamic clocking apparatus and system for reducing power dissipa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamic clocking apparatus and system for reducing power dissipa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic clocking apparatus and system for reducing power dissipa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-276549