Oki Electric Industry Co., Ltd.

Hajime Iwai

Atsuhiko Okada

Shingo Kazuma

Hideaki Wada

Mitsuaki Watanabe

Hirosuke Tabata

An interrupt signal EMG is put out to a microprocessorwhen a thermal monitordetects that a package temperature exceeds a reference. The microprocessor then increases a frequency division value N stored in a frequency division value registerof a clock mechanism. An inputted clock signal MCK is divided by N to generate a system clock signal SCK. Therefore, the frequency of system clock signal SCK decreases when N increases. Consequently, electricity consumption of each function modulei decreases and the package temperature is reduced.

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Tokyo, Japan

Hajime Iwai