Electronic digital logic circuitry – Multifunctional or programmable – Array
Patent
1996-01-05
1997-11-11
Harvey, Jack B.
Electronic digital logic circuitry
Multifunctional or programmable
Array
395735, 326 8, G06F 1300
Patent
active
056873794
ABSTRACT:
This invention relates to a system for providing programmable configuration protection of a programmable Input/Output device. By configuration protection, it is meant that the programming options of an I/O controller can be set in accordance to a given environment, and then by use of a programming controlled signal, prevent the changing of the programmed environment or remove those programmed options considered unsafe in the now secured environment.
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1992 National Semiconductor Corporation, PC87311/PC87312 (SuperI/O.TM. II/III) Floppy Disk Controller with Dual UARTs Parallel Port, and IDE Interface Pamphlet, Apr. 1992.
Ball Richard David
Krau Michael P.
Nicol Mark D.
O'Brien Terence Paul
Smith Jimmy Dean
Harvey Jack B.
Packard Bell NEC
Travis John
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