Programmable wait states generator for a microprocessor and comp

Details Programmable wait states generator for a microprocessor and comp Programmable wait states generator for a microprocessor and comp

1993-03-22

1994-05-17

Shaw, Dale M.

Boots, shoes, and leggings

364DIG1, 3642716, 3642718, 364DIG2, 364934, 364941, 36494191, G06F 104

Patent

active

053136217

ABSTRACT:
An electronic circuit employed in a microprocessor system inserts a programmable number of wait states in a machine cycle of the microprocessor in response to a specific operational code of the microprocessor's instruction set being detected on a system data bus. A particular application of the wait state generation circuit is to provide enough time for a control signal to propagate along a plurality of daisy-chained peripherals before the microprocessor machine cycle ends. The wait state generation circuit may be provided as part of the microprocessor on a single integrated circuit chip.

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Zilog, Inc., Z80 Family Data Book, Product Specification, Jan. 1989.

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