Communication control device

Details Communication control device Communication control device

1998-04-08

2000-01-18

Shin, Christopher B.

Electrical computers and digital data processing systems: input/

Input/output data processing

Data transfer specifying

710 52, 709250, 712 38, 372 16, 372 44, G06F 1300

Patent

active

060165219

ABSTRACT:
A communication control device has a central processing unit (3), an input data buffer (14), an output data buffer (15), a readout reload register (17), an output reload register (18), and a timer (19) located between an input terminal (1) and an output terminal (2). The timer (19) reads count values stored in both the reload registers (17, 18) alternately, that have already been set by the central processing unit (3) according to a protocol to be processed, and performs a counting operation based on the count values. Communication data items stored in both the data buffers (14, 15) are latched based on a time out output from the timer (19).

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