Logic LSI

Details Logic LSI Logic LSI

1995-06-07

1996-12-17

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

364707, 3642731, 3642735, G06F 132

Patent

active

055857507

ABSTRACT:
A logic LSI has a plurality of modules such as a CPU contained in one chip. Frequency changing conditions, signals for designating modules whose frequencies are changed for each frequency changing condition, and signals for designating frequencies to be changed are stored in a storage device of a frequency controller, software-wise. The sequentially-input status of the logic LSI is compared with the stored frequency changing conditions and, when the former conforms to the latter, a signal for changing the corresponding frequency is applied to each of the plurality of modules. Each of the modules generates a plurality of internal clocks in synchronization with the basic clock and selects one out of the internal clocks according to the frequency changing signal.

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patent: 5469561 (1995-11-01), Takeda
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