Serial data transfer apparatus for determining a reception time

Details Serial data transfer apparatus for determining a reception time Serial data transfer apparatus for determining a reception time

1995-03-29

1996-10-15

Bowler, Alyssa H.

Boots, shoes, and leggings

395280, 364284, 364DIG1, G06F 1300

Patent

active

055663435

ABSTRACT:
A serial data transfer apparatus includes a time base counter that counts by a clock signal (CLK). The count value of the time base counter at the point of time when the reception of the serial data (R.times.D) is completed is written into the reception buffer together with the reception data. Accordingly, in the central processing unit, when the reception data (R.times.D) is to be processed, the time difference since the reception serial data (R.times.D) can be detected by reading out the count value of the time base counter written in the reception buffer and by reading out the count value of the time base counter at present from the time base counter. Accordingly, time management of the reception data can be performed.

REFERENCES:
patent: 4298978 (1981-11-01), Nakamura
patent: 4932024 (1990-06-01), Bonicioli et al.
patent: 4989223 (1991-01-01), Katayose et al.
patent: 5223826 (1993-06-01), Amou et al.
NEC Corporation, "User's Manual .mu.PD7801xSeries 8-Bit Single-Chip Microcomputer", Document No. IEU-1343, Jun., 1992.

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