Microcomputer utilizing flash memory for data storage

Details Microcomputer utilizing flash memory for data storage Microcomputer utilizing flash memory for data storage

1997-02-25

1999-03-16

Heckler, Thomas M.

G06F 944

Patent

active

058840745

ABSTRACT:
A microcomputer having a program storing unit (16) separately from a CPU. The program storing unit (16) receives from a host computer (7) a boot program used for loading data into a flash memory (11), and stores the boot program into a RAM (2), when a mode decision circuit (15) makes a decision that a chip mode is an RSIF mode. This solves a problem of a conventional microcomputer in that it must reserve a boot program area in the flash memory in advance to prestore the boot program in the boot program area, and hence the entire area of the flash memory cannot be released as a user program area.

REFERENCES:
patent: 5568641 (1996-10-01), Nelson et al.
patent: 5664194 (1997-09-01), Paulsen
patent: 5768584 (1998-06-01), MacDonald et al.
patent: 5805882 (1998-09-01), Cooper et al.

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