Built-in apparatus and method for testing a microprocessor syste

Details Built-in apparatus and method for testing a microprocessor syste Built-in apparatus and method for testing a microprocessor syste

1981-10-22

1984-02-21

Atkinson, Charles E.

Excavating

371 16, 364900, G06F 1100, G01R 3128

Patent

active

044334133

ABSTRACT:
Built-in test apparatus is provided for testing the overall functional operation of a microprocessor system which has microprocessor, RAM, PROM, address latch, I/O, timer, multiple bus arbitration and other circuits in it. To the microprocessor system are added a pseudo-random pattern generator (PRPG), a signature register (SR), supplemental control logic, serial and parallel I/O port test logic and an LED display. The system PROM is programmed with test instructions. Test input data is provided by the test instructions and the PRPG. Test output data is processed by the SR and the system microprocessor, and the test results are presented on the display.

REFERENCES:
patent: 4320509 (1982-03-01), Davidson
patent: 4334307 (1982-06-01), Bourgeois et al.
patent: 4339801 (1982-07-01), Hosaka et al.
patent: 4340857 (1982-07-01), Fasang
patent: 4347608 (1982-08-01), Appiano et al.
H. Nadig, Testing a Microprocessor Product Using a Signature Analyzer, 1978 Semiconductor Test Conference, Cherry Hill, N.J., Oct.-Nov. 1978, pp. 158-169.
A Designer's Guide to Signature Analysis, Application Note 222, Hewlett-Packard, Received in P.T.O., Jan. 6, 1981, pp. 1-50.
Benowitz et al., An Advanced Fault Isolation System for Digital Logic, IEEE Trans. on Computers, vol. C-24, No. 5, May 1975, pp. 489-497.
Gordon et al., Hexadecimal Signatures Identify Troublespots in Microprocessor Systems, Electronics, Mar. 3, 1977, pp. 89-96.

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