On-chip clock generator allowing rapid changes of on-chip...

Details On-chip clock generator allowing rapid changes of on-chip... On-chip clock generator allowing rapid changes of on-chip...

2007-05-08

2007-05-08

Perveen, Rehana (Department: 2116)

Electrical computers and digital processing systems: support

Clock, pulse, or timing signal generation or analysis

Reexamination Certificate

active

10393229

ABSTRACT:
A method and apparatus are provided, the method and apparatus comprising sending an output of a free-running counter to a comparator for a clock shaper logic unit, the free-running counter incremented every time a double-speed clock rises for an on-chip system and sending at least one input from a central processing unit (CPU) to the comparator for the clock shaper logic unit, the at least one input specifying a desired frequency. The method and apparatus also comprises producing a central processing unit (CPU) clock in the clock shaper logic unit based on the output of the free-running counter and the at least one input specifying the desired frequency by comparing a bit-reversed version of the output of the free-running counter with the at least one input specifying the desired frequency.

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