Microcomputer having an internal address mapper

Details Microcomputer having an internal address mapper Microcomputer having an internal address mapper

1983-10-31

1987-03-10

Williams, Archie E.

Boots, shoes, and leggings

G06F 1202, G06F 1300

Patent

active

046494766

ABSTRACT:
In a microcomputer, an address mapper allows the user to selectively map a resource which is ordinarily addressable in one portion of the address range of the microcomputer into a correspondingly sized area elsewhere in the address range. Using a resource map address stored by the user in an addressable map register, the mapper continuously compares the map address to a corresponding number of bits on the microcomputer's address bus. When a match is detected, the mapper enables the address decoder of the mapped resource. The mapper can also map the map register. Since the mapper can map more than one resource, an interlock mechanism resolves access conflicts.

REFERENCES:
patent: 4378590 (1983-03-01), Kim
patent: 4384342 (1983-05-01), Imura et al.
patent: 4407016 (1983-09-01), Bayliss et al.
patent: 4435763 (1984-03-01), Bellay et al.
patent: 4473878 (1984-09-01), Zolnowsky et al.

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