Data processing system which permits of using the same erasable

Details Data processing system which permits of using the same erasable Data processing system which permits of using the same erasable

1986-06-26

1987-05-12

Heckler, Thomas M.

Boots, shoes, and leggings

G06F 1300

Patent

active

046654801

ABSTRACT:
The data processing system according to the invention has a microprocessor and an external erasable and programmable memory. A logic connection system is arranged between control pins of the microprocessor and a controlled pin of the external memory. These control pins of the microprocessor are the program control pin, a port control pin, the controlled pin of the memory and the memory selection pin. This ligic connection system permits using only one memory both for reading and writing of instructions and/or data instead of the two memories generally used.

REFERENCES:
Cayton, "Designing with Nitride-Type EAROMs", Memory Design: Microcomputer to Mainframes, pp. 120-126, published 1978.

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