Clock generating circuit and method

Details Clock generating circuit and method Clock generating circuit and method

2006-01-10

2006-01-10

Callahan, Timothy P. (Department: 2816)

Oscillators

Plural oscillators

C331S034000, C331S057000, C327S159000

Reexamination Certificate

active

06985041

ABSTRACT:
A clock generating circuit is provided that includes a multiplexing device coupled to a clock distribution network to select between a synchronous mode and an asynchronous mode. The device may also include a plurality of distributed ring oscillators to drive the clock distribution network in the asynchronous mode. In the synchronous mode, the multiplexing device may pass a signal from a phase lock loop circuit located external to a core.

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Gyu Moon et al., “A New GHZ CMOX Cellular Oscillator Network,” 1998 IEEE, pp. II-89-92.

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