Method for managing an external memory of a microprocessor

Details Method for managing an external memory of a microprocessor Method for managing an external memory of a microprocessor

2008-01-01

2008-01-01

McLean-Mayo, Kimberly (Department: 2187)

Electrical computers and digital processing systems: memory

Address formation

Address mapping

C711S203000, C711S154000, C711S002000, C711S220000

Reexamination Certificate

active

10605165

ABSTRACT:
A method for managing an external memory of a microprocessor so that the external memory only contains one copy of a common area. By providing an address translator, mapping the page and the address of the common area of the page pointed by a microprocessor to the physical address of the common area of the external memory, using the address translator to translate a page and an address pointed by a microprocessor to a physical address of the external memory, and using the microprocessor to access data stored at the physical address of the external memory; the memory can be more efficiently used.

REFERENCES:
patent: 5146581 (1992-09-01), Kaneko
patent: 6564283 (2003-05-01), Ahn
patent: 2004/0199693 (2004-10-01), Tseng et al.
patent: 05046473 (1993-05-01), None
Shu Shen Dang; “Migrating from the MCS® 51 Microcontroller to the MCS 251 Microcontroller (8XC251SB)—Software and hardware considerations”.

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