Diagnostic interface system for programmable logic system develo

Details Diagnostic interface system for programmable logic system develo Diagnostic interface system for programmable logic system develo

1997-04-28

1999-02-09

Beausoliel, Jr., Robert W.

Excavating

371 2232, G01R 3128

Patent

active

058704108

ABSTRACT:
An diagnostic interface system for a programmable logic system is disclosed. The diagnostic interface system provides an efficient and flexible mechanism for accessing internal nodes of programmable logic devices (PLDs) to facilitate debugging and troubleshooting of the programmable logic system. The interface system includes a diagnostic data bus connecting external I/O pins to various diagnostic data and address registers that connect to the internal circuitry of a PLD. A diagnostics controller controls the various diagnostic resources in response to user supplied control data.

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