System for allowing synchronous sleep mode operation within a co

Details System for allowing synchronous sleep mode operation within a co System for allowing synchronous sleep mode operation within a co

1995-04-11

1997-06-10

Hjerpe, Richard

Computer graphics processing and selective visual display system

Data responsive crt display control

345212, 395750, 395551, 364707, G09G 106

Patent

active

056380836

ABSTRACT:
A system is provided that allows for the synchronous operation of a memory controller within a computer when the local bus clock has become inactive for a predetermined period of time. The system includes a circuit that senses the presence of the local bus clock and dependent upon whether the local bus clock is active or inactive causes a switching circuit to switch to a second clock signal that is independent of the local bus clock to run the memory controller. In one embodiment, a pixel clock signal is utilized to run the memory controller when the local bus clock signal is not active.

REFERENCES:
patent: 4317181 (1982-02-01), Teza et al.
patent: 4409665 (1983-10-01), Tubbs
patent: 4673930 (1987-06-01), Bwjalaski et al.
patent: 4698748 (1987-10-01), Juzswik et al.
patent: 4748559 (1988-05-01), Smith et al.
patent: 5021983 (1991-06-01), Nguyen et al.
patent: 5025387 (1991-06-01), Frane
patent: 5059961 (1991-10-01), Cheng
patent: 5083266 (1992-01-01), Wantanabe
patent: 5167024 (1992-11-01), Smith et al.
patent: 5182810 (1993-01-01), Bartling et al.
patent: 5426755 (1995-06-01), Yokouchi et al.
patent: 5485625 (1996-01-01), Gumkowski
patent: 5502689 (1996-03-01), Peterson et al.

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