Microcontroller with program recomposing function

Details Microcontroller with program recomposing function Microcontroller with program recomposing function

1994-07-08

1995-06-20

Coleman, Eric

Boots, shoes, and leggings

3642446, 3642542, 364243, 364DIG1, G06F 1100

Patent

active

054267463

ABSTRACT:
A microcontroller has three types of memory; a ROM in which is recorded a program, a programmable first non-volatile memory, and a second non-volatile memory having programmable address data and instruction data zones. When the result of a detection performed by a comparator shows that address data sent over an address bus matches address data sent from the address data zone, an instruction data selection section selects and outputs instruction data stored in the instruction data zone corresponding to the address data in the address data zone, instead of outputting instruction data from the ordinary ROM.

REFERENCES:
patent: 4315321 (1982-02-01), Parks, III
patent: 4433413 (1984-02-01), Fasang
patent: 4465901 (1984-08-01), Best
patent: 5051897 (1991-09-01), Yamaguchi et al.
patent: 5357627 (1994-10-01), Miyazawa

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