System for adapting maintenance operations to JTAG and non-JTAG

Details System for adapting maintenance operations to JTAG and non-JTAG System for adapting maintenance operations to JTAG and non-JTAG

1995-08-24

1998-01-06

Beausoliel, Jr., Robert W.

Excavating

371 2231, 371 2232, 39518306, G01R 3128

Patent

active

057062978

ABSTRACT:
A digital system which normally initializes and tests non-JTAG logic units is adapted to test JTAG protocol compatible logic units. A JTAG translator unit provides an instruction control register and a Data Register. The Control Register has control bits for selecting Test-Mode-Select and Test Clock signals for the JTAG compatible units and Shift/Hold signals for the non-JTAG compatible logic units. The Data Register supplies diagnostic test bits to registers in both the JTAG and non-JTAG logic units. Additionally, the Control Register can initiate automatic incrementation of addresses to a control state RAM for rapid loading of microcode.

REFERENCES:
patent: 4947357 (1990-08-01), Stewart et al.
patent: 4947395 (1990-08-01), Bullinger et al.
patent: 5115435 (1992-05-01), Langford et al.
patent: 5412260 (1995-05-01), Tsui et al.
patent: 5423050 (1995-06-01), Taylor et al.
patent: 5428623 (1995-06-01), Rahman et al.
patent: 5444716 (1995-08-01), Jarwala et al.
patent: 5497378 (1996-03-01), Amini et al.

Affiliated with

Also associated with

Rating

System for adapting maintenance operations to JTAG and non-JTAG does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for adapting maintenance operations to JTAG and non-JTAG , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for adapting maintenance operations to JTAG and non-JTAG will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2335829