Communications bus monitor

Details Communications bus monitor Communications bus monitor

1978-03-13

1979-04-10

Springborn, Harvey E.

Boots, shoes, and leggings

G06F 1100

Patent

active

041492412

ABSTRACT:
A monitor provides a continuously active assessment of the performance of a parallel communications bus by continuously comparing the binary level of the bus lines with system-defined levels which should be exhibited when the bus is in an "at rest" condition. Logic circuitry enables bus line logic level comparisons with "at-rest" condition reference values with any one discrepancy providing a latched invalid bus annunciation which is selectively enabled during periods when the bus is sensed to be in the "at-rest" condition.

REFERENCES:
patent: 3810120 (1974-05-01), Huettner et al.

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