Pseudo synchronous clocking

Details Pseudo synchronous clocking Pseudo synchronous clocking

1980-06-30

1983-09-20

Gruber, Felix D.

Boots, shoes, and leggings

328155, 364900, H03L 706, H03K 500

Patent

active

044058985

ABSTRACT:
Two systems of synchronous logic with dissimilar maximum clocking rate requirements use a single oscillating source to derive pseudo synchronous logic related clock signals having desired mutual properties. The periods of the clock T.sub.1 and T.sub.2 form the relationship ##EQU1## where S is a rational number and .alpha. is a largest denominator of T.sub.1 and T.sub.2. .alpha. then can be used to define a window that permits the transfer of data pulses from one of the systems to another without metastable conditions occurring in latch circuits.

REFERENCES:
patent: 4021784 (1977-05-01), Kimlinger
patent: 4099241 (1978-07-01), Ossfeldt

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