Communication device for synchronized serial communication

Details Communication device for synchronized serial communication Communication device for synchronized serial communication

1995-08-16

1998-04-07

Harrity, John E.

Boots, shoes, and leggings

39520038, 364132, 3642304, 364DIG1, G06F 1300

Patent

active

057376301

ABSTRACT:
In order to shorten time needed for communication and alleviate the processing load of the handshake procedure, a master CPU and a slave CPU perform an exchange of data utilizing a first data line and a second data line. A key word is entered in a communication message to the master CPU from the slave CPU requesting initialization be performed. An initialization request from the slave CPU to the master CPU is performed with a key word accompanying a communication error from the slave CPU. The master CPU initializes the slave CPU and synchronizes with it by utilizing a request line, and a reply line only when the master CPU power is turned on or when a communication error occurs including the request for initialization by means of the key word.

REFERENCES:
patent: 4825362 (1989-04-01), Minami et al.
patent: 5109329 (1992-04-01), Strelioff
patent: 5587573 (1996-12-01), Owen et al.

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