Data processor including an A/D converter for converting a plura

Details Data processor including an A/D converter for converting a plura Data processor including an A/D converter for converting a plura

1988-11-28

1991-02-26

Eng, David Y.

Boots, shoes, and leggings

3642604, 3642412, G06F 500, G06F 1312

Patent

active

049966391

ABSTRACT:
A data processor includes a CPU and an A/D converter for converting one of several analog inputs into digital data. A data memory stores data designating analog inputs to be converted. A circuit, responsive to an A/D conversion completion signal from the A/D converter, supplies a macro service operation request to the CPU, which interrupts the CPU without having to save the contents of a CPU program counter and a CPU status register. Upon completion of the A/D conversion, the converted digital data are stored in a predetermined location, and CPU execution resumes.

REFERENCES:
patent: 3789365 (1974-01-01), Ien
patent: 3883852 (1975-05-01), Cotter
patent: 4075691 (1978-02-01), Davis
patent: 4085449 (1978-04-01), Walsh et al.
patent: 4315314 (1982-02-01), Russo
patent: 4404627 (1983-09-01), Marcantonio
patent: 4817049 (1989-03-01), Bates et al.

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