Master-slave microprocessor control circuit

Details Master-slave microprocessor control circuit Master-slave microprocessor control circuit

H - Electricity

04

Q

344/29

H04Q 3/54 (2006.01) G06F 11/16 (2006.01) G06F 13/32 (2006.01) H04Q 3/545 (2006.01)

Patent

CA 1184640

TITLE MASTER-SLAVE MICROPROCESSOR CONTROL CIRCUIT ABSTRACT OF THE DISCLOSURE A control circuit, for use in a telephone switching system, which monitors, controls and trans- fers data to and from memory, input-output devices and external circuits. A pair of microprocessors and associated read-only and random-access memories are operated in a master slave arrangement. A com- parison circuit continuously monitors the integrity of the master microprocessor by comparing the signal on its data, address and control leads with those of a slave microprocessor.

382280

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