Simple asynchronous data synchronizer to a faster clock

Details Simple asynchronous data synchronizer to a faster clock Simple asynchronous data synchronizer to a faster clock

1993-12-06

1995-09-19

Tse, Young

Pulse or digital communications

Synchronizers

375359, 370108, 326 93, 327161, 327162, 327291, H04L 702, H03K 5135

Patent

active

054523230

ABSTRACT:
A data synchronizer (10) for synchronizing data generated by a data source (16) at a first rate includes a first timer (22) for generating a first timing signal at the first rate. A first register (20) connected to the first timer (22) has an input connected to the data source (16). The first register (20) temporarily stores multi-bit data words from the date source (16). A second timer (26) generates a second timing signal at the second rate. A second register (24) connected to the second timer (26) has an input connected to an output of the first register (20). The second register (24) temporarily stores multi-bit data words from the first register (20). A synchronizer connected to the first and second timers (22, 26) generates a good data signal when the multi-bit data words from the first register (20) is available at an output of the second register (24).

REFERENCES:
patent: 4371962 (1983-02-01), Zeitraeg
patent: 4553129 (1985-11-01), McNesby et al.
patent: 5012138 (1991-04-01), Suzuki
patent: 5233617 (1993-08-01), Simmons et al.
patent: 5287389 (1994-02-01), Ichibangase et al.

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