Remotely re-programmable program memory for a microcontroller

Details Remotely re-programmable program memory for a microcontroller Remotely re-programmable program memory for a microcontroller

1995-05-17

1996-02-20

Fears, Terrell W.

Static information storage and retrieval

Powering

36518901, 36518533, G11C 1300

Patent

active

054935342

ABSTRACT:
A single chip microcontroller has a plurality of I/O ports which communicate directly and indirectly with an electrically programmable and erasable read only memory array used as a program store circuit. The PEROM array provides for fast erasing and reprogramming, either directly from a local host or remotely. The plurality of ports provides alternative access routes to the memory store, thereby providing a capability for verifying microinstructions immediately after writing them, one at a time. A random access memory, RAM, is also provided. The PEROM array is like hard disk storage in a microcontroller. A low voltage power supply has a connected charge pump which provides a programming and erase high voltage for the PEROM array.

REFERENCES:
patent: 4757503 (1988-07-01), Hayes et al.
patent: 4780814 (1988-10-01), Hayek
patent: 4782439 (1988-11-01), Borkar et al.

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