Communication control system

Details Communication control system Communication control system

1988-05-25

1990-07-03

Smith, Jerry

Excavating

G06F 1110

Patent

active

049397419

ABSTRACT:
In a serial communication unit having a CRC calculator or in a single-chip micro-computer including the serial communication unit, the CRC calculator is operated in synchronism with a system clock which is different from and asynchronous with respect to a reception clock. As a result, the CRC calculation is prevented from being stopped by the interruption of the reception clock, or the CRC calculation by the software is unnecessitated, thereby improving the communication efficiency.

REFERENCES:
patent: 3227999 (1966-01-01), Hagelrarger
patent: 3475724 (1969-10-01), Townsend
patent: 4397020 (1983-08-01), Howson
patent: 4447902 (1984-05-01), Wilkinson
patent: 4593393 (1986-06-01), Mead
patent: 4644543 (1987-02-01), Davis
patent: 4700350 (1987-10-01), Douglas
patent: 4809273 (1989-02-01), Jackowski
".mu.PD72001 User's Manual", pp. 161-165, published by NEC, 1986.

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