Changing clock frequency

Details Changing clock frequency Changing clock frequency

1999-04-30

2000-09-12

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By frequency

327 45, G01R 2302

Patent

active

061183067

ABSTRACT:
A system includes a component (e.g., a processor) that includes a clock generator that generates an internal clock running at a frequency. A controller generates a clock frequency change indication and places the component into a low activity state (e.g., deep sleep, stop grant, or other state). The clock generator is reset by the clock frequency change indication to change the clock's frequency while the component is in the low activity state. Storage elements containing different values are selectable to set the clock frequency. The storage elements include fuse banks and input pins.

REFERENCES:
patent: 4615005 (1986-09-01), Maejima et al.
patent: 5222239 (1993-06-01), Rosch
patent: 5319772 (1994-06-01), Hwang
patent: 5381116 (1995-01-01), Nuckolls et al.
patent: 5475324 (1995-12-01), Timiyori
patent: 5479644 (1995-12-01), Hongo

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