System for coupling asynchronous data path to field check circui

Details System for coupling asynchronous data path to field check circui System for coupling asynchronous data path to field check circui

1996-03-29

1998-06-02

Meky, Moustafa M.

Excavating

371 491, 370466, G06F 1100

Patent

active

057614652

ABSTRACT:
A data communication circuit of a computer system, includes transmitter and receiver circuits each having first and second data paths for respectively communicating synchronously and asynchronously formatted data on an alternatively selected basis, and a control circuit for controlling such communications. Included in the first data paths of the transmitter and receiver circuits are certain field check generating or error checking circuitry which are switchably coupled by their respective control circuits to their corresponding second data paths when synchronously formatted data is being asynchronously communicated through the second data paths.

REFERENCES:
patent: 3999163 (1976-12-01), Levy et al.
patent: 4007448 (1977-02-01), Sergeant et al.
patent: 4700358 (1987-10-01), Duncanson et al.
patent: 4817147 (1989-03-01), Gorniak et al.
patent: 5107507 (1992-04-01), Bland et al.
patent: 5230002 (1993-07-01), Yamashita et al.

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