Data processor and single-chip microcomputer with changing clock

Details Data processor and single-chip microcomputer with changing clock Data processor and single-chip microcomputer with changing clock

1995-12-14

1998-07-07

Sheikh, Ayaz R.

Boots, shoes, and leggings

39575001, 39575003, 39575008, 364707, G06F 100, G06F 118, G06F 126

Patent

active

057782377

ABSTRACT:
A microcomputer has a clock generator capable of changing the frequency of an output clock signal: and a power circuit capable of changing the level of an operating voltage to be outputted. The frequencies of clock signals and the levels of operating voltages to be individually fed to a plurality of circuit modules can be dynamically changed according to the content of a packaged register. If the content of the register instructs the reduction of the clock signal frequency and the operating voltage in its absolute value, the operating voltage is lowered in its absolute value prior to the change in the clock signal frequency. On the contrary, if the instruction is to increase the frequency of the clock signal and the operating voltage in its absolute value, the clock signal having the increased frequency is outputted prior to the increase of the operating voltage in the absolute value. As a result, it is possible to prevent in advance the malfunctions of the circuit at the time of switching the operation frequency and the operating voltage of the circuit module.

REFERENCES:
patent: 4766567 (1988-08-01), Kato
patent: 5237697 (1993-08-01), Nakano
patent: 5270581 (1993-12-01), Nakamura
patent: 5319771 (1994-06-01), Takeda
patent: 5471587 (1995-11-01), Fernando
patent: 5511013 (1996-04-01), Tokieda et al.
patent: 5560022 (1996-09-01), Dunstan et al.
patent: 5632040 (1997-05-01), Nakajima
patent: 5638307 (1997-06-01), Kamimura et al.
patent: 5642487 (1997-06-01), Flynn et al.
patent: 5692201 (1997-11-01), Yato

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