External expansion bus interface circuit for connecting a micro

Details External expansion bus interface circuit for connecting a micro External expansion bus interface circuit for connecting a micro

1996-11-27

1999-04-06

Meky, Moustafa M.

395309, G06F 1502

Patent

active

058929827

ABSTRACT:
An external expansion bus interface circuit is provided for connecting a peripheral to a micro control unit to exchange digital information under an external expansion memory mode of the micro control unit. For this purpose, the eternal expansion bus interface circuit includes a means for storing a writing data. Address decoder and a strobe decoder are connected to the micro control unit to directly receive the writing data, an address strobe, and a write strobe. Then the address decoder and strobe decoder produce a write enable signal for enabling the memory to store the data at address designated thereby.

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Copy of a German examination report (along with an English translation) mailed on Mar. 20, 1998 in German counterpart application No. 196 49 075.8-53.
Pp. 48 and 49 (Section 3.4.4-80C48 CMOS Memory Interface) of a publication by Chris J. Georgopoulos entitled "Interface Fundamentals In Microprocessor-Controlled Systems", published by D. Reidel Publishing Company, 1985.

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