Memory address space determination using programmable limit regi

Details Memory address space determination using programmable limit regi Memory address space determination using programmable limit regi

1990-06-15

1993-05-11

Dixon, Joseph L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361DIG1, 361DIG7, 3619691, G06F 1214

Patent

active

052108503

ABSTRACT:
An apparatus for determining cacheable address and write-protect memory address regions in a computer system which includes a programmable single-ended limit register and a single comparator to determine each such region. A programmable limit register associated with each respective memory address region defines a boundary limit for each of the respective memory regions. A single address comparator associated with each respective limit register determines whether a memory address developed by the computer system resides between the respective boundaries provided by the value stored in the respective programmable limit register and a predefined address. The use of a single limit register and a single address comparator for each memory address region reduces the gate count and decreases the input buffer loading in the logic circuitry.

REFERENCES:
patent: 4407016 (1983-09-01), Bayliss et al.
patent: 4503491 (1985-03-01), Lushtak et al.
patent: 4527237 (1985-07-01), Frieder et al.
patent: 4682283 (1987-07-01), Robb
patent: 4860192 (1989-08-01), Sachs et al.
W. H. Payne, "Decode overlapped EPROM, RAM, and I/O", 2119 E.D.N. Electrical Design News 32 (1987) May 14, No. 10, p. 241.

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