Apparatus with reconfigurable counter includes memory for storin

Details Apparatus with reconfigurable counter includes memory for storin Apparatus with reconfigurable counter includes memory for storin

1989-05-22

1992-04-28

Lee, Thomas C.

Boots, shoes, and leggings

364DIG1, 3642448, 364243, 3642446, 364DIG2, 36492781, G06F 1560

Patent

active

051095033

ABSTRACT:
A reconfigurable counter is provided which includes first and second memories coupled via a common bus to a microprocessor which controls the process of configuring and reconfiguring the counter. A programmable hardware array, coupled to the microprocessor, is capable of being programmed to emulate a plurality of different counter types. The first memory stores a plurality of different counter configuration profiles, each of which corresponds to a different type counter configuraiton. In one or more of the selected counter types, different counter modes such as an up-down counter mode, pulse direction counter mode and A quad B counter modes are available. When the user indicates a selected counter profile to the microprocessor, the microprocessor writes the corresponding counter configuration profile from the first memory into the programmable hardware array using the parameters or modes of operation stored in the second memory until such time as the user indicates the choice of another counter profile to the microprocessor.

REFERENCES:
patent: 4031517 (1977-06-01), Hirtle
patent: 4674089 (1987-06-01), Poret et al.
patent: 4751671 (1988-06-01), Bebetski et al.
patent: 4924382 (1990-05-01), Shouda
patent: 4964056 (1990-10-01), Bekki et al.
Xilinx Technical Data, XC3000 Logic Cell.TM. Array Family, Copyright 1988.

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