Microprocessor with an exclusive address terminal for selecting

Details Microprocessor with an exclusive address terminal for selecting Microprocessor with an exclusive address terminal for selecting

1993-04-15

1993-11-16

Lall, Parshotam S.

Boots, shoes, and leggings

395800, 3642328, 3642315, 3642405, 3642407, 3642419, 3642436, 36424531, 364DIG2, 36492793, 36492794, G06F 1310

Patent

active

052631419

ABSTRACT:
A digital electronic circuit device includes a CPU provided with multiplexed address/data terminals and exclusive address terminals, an expansion port provided with data terminals and exclusive address terminals, a multiplexed address/data bus connecting the multiplexed address/data terminals with the data terminals and an address bus connecting the address terminals of the CPU with the address terminals of the expansion port. If a program for the CPU is likely to contain many bugs, a detachable external ROM for storing the program and an address latch are connected with the multiplexed address/data bus. The address latch receives address signals from the multiplexed address/data bus, temporarily stores these signals and addresses the external ROM.

REFERENCES:
patent: 4393464 (1983-07-01), Knapp et al.
patent: 4443864 (1984-04-01), McElroy
patent: 4445170 (1984-04-01), Hughes et al.
patent: 4468737 (1984-08-01), Bowen
patent: 4503491 (1985-03-01), Lushtak et al.
patent: 4543629 (1985-09-01), Grey et al.
patent: 4649471 (1987-03-01), Briggs et al.
patent: 4694394 (1987-09-01), Costantini
patent: 4802119 (1989-01-01), Heene et al.
patent: 4839795 (1989-06-01), Iwaksaki
patent: 4845657 (1989-07-01), Yokota et al.
patent: 5056009 (1991-10-01), Mizuta
patent: 5067077 (1991-11-01), Wakimoto et al.
Liu et al; "Microcomputer Systems: The 8086/8088 Family Architecture, Programming, and Design"; Prentice-Hall 1984, 1986 pp. 25-27, 308-333.

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