Patent
1997-11-14
1999-05-25
Lee, Thomas C.
39575004, G06F 104, G06F 126
Patent
active
059076992
ABSTRACT:
A microcomputer incorporating two oscillation circuits for generating clocks having different frequencies, which can be driven even when an oscillator is connected only to one of the oscillation circuits, by counting the number of clock pulses of the first or the second oscillation circuit, and selecting the clock of the first or the second oscillation circuit according to the data latched in a latch circuit that is set by an overflow signal outputted when the count value overflows.
REFERENCES:
patent: 4229699 (1980-10-01), Frissell
patent: 4322580 (1982-03-01), Khan et al.
patent: 4379993 (1983-04-01), Holden
patent: 4490581 (1984-12-01), Edwards et al.
patent: 4538272 (1985-08-01), Edwards et al.
patent: 4653054 (1987-03-01), Liu et al.
patent: 4754216 (1988-06-01), Wong
patent: 4899351 (1990-02-01), Bonke
patent: 4965524 (1990-10-01), Patchen
patent: 5155840 (1992-10-01), Niijima
patent: 5254960 (1993-10-01), Hikichi
patent: 5261082 (1993-11-01), Ito et al.
patent: 5270713 (1993-12-01), Isono
patent: 5289050 (1994-02-01), Ogasawara
patent: 5303279 (1994-04-01), Fujii
patent: 5416435 (1995-05-01), Jokinen et al.
patent: 5475324 (1995-12-01), Tomiyori
patent: 5513358 (1996-04-01), Lundberg et al.
patent: 5535379 (1996-07-01), Koura
Lee Thomas C.
Mitsubishi Denki & Kabushiki Kaisha
Mitsubishi Electric Semiconductor Software Co. Ltd.
Wang Albert
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