Fault indicating microcomputer interface units

Details Fault indicating microcomputer interface units Fault indicating microcomputer interface units

1992-07-31

1993-03-09

Chan, Eddie P.

Boots, shoes, and leggings

395325, 364DIG1, 364266, 3642664, 3642677, 3642605, 371 251, 371 671, 371 70, G06F 1100

Patent

active

051931770

ABSTRACT:
A microcomputer interface arrangement includes a microcomputer having I/O ports coupled to individual interface units. A fault detection circuit detects a fault in an interface unit, interrupts the microcomputer and inverts the input state of the faulty unit without affecting the output states so that the faulty unit can be identified by the microcomputer by reading inputs of the interface units.

REFERENCES:
patent: 3681578 (1972-08-01), Stevens
patent: 3735255 (1973-05-01), Goldman
patent: 4283720 (1981-08-01), Herledan

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