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Odd I/O Port Address Mechanism

IP.com Disclosure Number: IPCOM000059572D
Original Publication Date: 1988-Dec-01
Included in the Prior Art Database: 2005-Feb-16

Publishing Venue

IBM

Related People

Authors:
Bergey, AL, Jr [+details]

Abstract

Some microprocessors have very little internal hardware checking. This design improves the checking of microprocessors by using only odd parity I/O port address. Any access to an even parity I/O port results in a check condition.