Electronic circuit device able to diagnose status-holding circui

Details Electronic circuit device able to diagnose status-holding circui Electronic circuit device able to diagnose status-holding circui

1988-03-04

1989-08-01

Atkinson, Charles E.

Excavating

371 15, G01R 3128

Patent

active

048539295

ABSTRACT:
An electronic circuit device able to diagnose a status-holding circuit by scanning, the device comprising a first plurality of integrated circuits each including a serial scan circuit for receiving serial data, generating an address value of a target status-holding circuit as parallel data from the received serial data, and selecting the target status-holding circuit having the generated address value, and a second plurality of integrated circuits each including a parallel scan circuit for receiving an address value of a target status-holding circuit as parallel data and selecting the target status-holding circuit having the received address value. Address information received as serial data being used for generating parallel address information, and address information received as parallel data being used for generating serial address information.

REFERENCES:
patent: 4698588 (1987-10-01), Hwang et al.
patent: 4701921 (1987-10-01), Powell et al.
patent: 4703484 (1987-10-01), Rolfe et al.
patent: 4710931 (1987-12-01), Bellay et al.
patent: 4710933 (1987-12-01), Powell et al.

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