Pipelined microprocessor with instruction execution control unit

Details Pipelined microprocessor with instruction execution control unit Pipelined microprocessor with instruction execution control unit

1990-05-31

1993-05-11

Lee, Thomas C.

Boots, shoes, and leggings

3642318, 364285, 3649481, 364265, 364DIG1, G06F 1100

Patent

active

052108643

ABSTRACT:
A microprocessor which incorporates a processor mode using processor instructions for executing pipeline processing of instructions and a test mode using test instructions for easily diagnosing internal function blocks by allowing them to independently operate, and transfers the operation mode to the test mode with holding contents of a plurality of internal registers by test interruption during executing instructions under the processor mode, and then transfers the operation mode to the processor mode with holding the content of the plurality of internal registers by executing a dedicated instruction under the test mode, so that diagnosis of respective function blocks is executed by the test program which reciprocates both modes using the processor instruction and the test instruction.

REFERENCES:
patent: 3921142 (1975-11-01), Bryant et al.
patent: 3924110 (1975-12-01), Cochran et al.
patent: 4402042 (1983-08-01), Guttas
patent: 4490783 (1984-12-01), McDonough et al.
patent: 4507727 (1985-03-01), Magar
patent: 4847805 (1989-07-01), Ishii
patent: 4868822 (1989-09-01), Scott
patent: 4954942 (1990-09-01), Masuda
patent: 5005172 (1991-04-01), Kawamoto
patent: 5053949 (1991-10-01), Allison
"Testing Approaches in the MC68020," Kuban et al., Motorola, Inc., VLSI Design, Nov. 1984 pp. 22-30.
"A Logical LSI Capable of Executing Text Without Aid of Testers", Tanaica, Nikkel Electronics, Jun. 20, 1983, pp. 124-135.
"A Method of Significantly Improving the Detect Rate of Failure of LSI . . . ", Tanaka, Nikkel Electronics, Apr. 18, 1989, pp. 57-68.

Affiliated with

Also associated with

Rating

Pipelined microprocessor with instruction execution control unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pipelined microprocessor with instruction execution control unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipelined microprocessor with instruction execution control unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1357809