Processor with embedded in-circuit programming structures

Details Processor with embedded in-circuit programming structures Processor with embedded in-circuit programming structures

2005-01-11

2005-01-11

Bragdon, Reginald G. (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C717S168000

Reexamination Certificate

active

06842820

ABSTRACT:
An architecture for an integrated circuit with in-circuit programming, allows for dynamically altering the in-circuit programming instruction set itself, as well as other software stored on the chip. The architecture is based on a microcontroller on an integrated circuit having two or more banks of embedded non-volatile memory arrays which store instructions, including an in-circuit programming instruction set. Using a control program stored on the device, the device interactively establishes an in-circuit programming exchange with a remote partner, and updates data and software, including the in-circuit programming instruction set, when needed. The processor and ICP code are responsive to an in-circuit programming update command to write a copy of the in-circuit programming set from a first memory array to a second memory array, and to cause the in-circuit programming to execute the in-circuit programming set from the second memory array to program the non-volatile memory cells of the first memory array with data from the external port.

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