Methods and apparatus for system testing of processors and compu

Details Methods and apparatus for system testing of processors and compu Methods and apparatus for system testing of processors and compu

1997-10-31

1999-11-02

Nguyen, Hoa T.

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

G01R 3128

Patent

active

059789468

ABSTRACT:
In one aspect of the present invention, an apparatus is provided for testing a processor running a software program. The apparatus includes a bus having control, data and address lines and a device assigned at least one address. The bus connects the device to the processor. The apparatus includes a multiple input signature register having a plurality of parallel input terminals connected to the data lines. The apparatus includes a control unit having first and second input terminals connected to the address and control lines respectively. The control unit is adapted to enabling the parallel input terminals of the multiple input signature register in response to detecting on the address and control lines at least one preselected triggering event executed by the software program to a preselected address of the device. The apparatus includes a signature comparator adapted to comparing a test signature number from the multiple input signature register to a reference signature number.

REFERENCES:
patent: 4520440 (1985-05-01), Buonomo et al.
patent: 4864570 (1989-09-01), Savaglio et al.
patent: 5301199 (1994-04-01), Ikenaga et al.
patent: 5583786 (1996-12-01), Needham
patent: 5608867 (1997-03-01), Ishihara
Designer's Guide to Testable ASIC Devices,Wayne Maurice Needham, (Van Nostrand Reinhold, New York, 1991), pp. vii-x and 10-15, 34-37, 63-178.

Affiliated with

Also associated with

Rating

Methods and apparatus for system testing of processors and compu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatus for system testing of processors and compu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for system testing of processors and compu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2151346