High speed processing restarting apparatus

Details High speed processing restarting apparatus High speed processing restarting apparatus

1980-07-28

1983-05-31

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 104, G06F 1300

Patent

active

043864015

ABSTRACT:
The present apparatus includes logic for stopping timing circuits in a central processing unit and for restarting the timing circuits to produce timing signals synchronized with an asynchronous external signal. The continuous running master clock of the central processing unit is employed to generate a plurality of phase related new clock signals. Logic circuit means are provided to sequentially attempt to employ each of the new clock signals until one of the new clock signals synchronizes with the external asynchronous signal. The logic circuit means include circuits for selecting a new clock signal to be employed by the timing circuits of the central processing unit so that the new clock is synchronized with the external asynchronous signal.

REFERENCES:
patent: 3753232 (1973-08-01), Sporer
patent: 4042911 (1977-08-01), Bourke et al.
patent: 4050096 (1977-09-01), Bennett et al.
patent: 4153491 (1979-05-01), Caddell

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