The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 24, 2010

Filed:

Oct. 17, 2006
Applicant:

Takuya Honda, Nagoya, JP;

Inventor:

Takuya Honda, Nagoya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); G06F 13/12 (2006.01); H03M 1/00 (2006.01); H03M 1/72 (2006.01);
U.S. Cl.
CPC ...
Abstract

A serial communication circuit for performing full duplex serial communication with a microcomputer includes a counter and a timer. The counter is incremented by each pulse of a serial clock signal output from the microcomputer. When the counter reaches the number of bits of serial data output from the microcomputer, the counter outputs a load signal to a receiving register. The timer starts to count after the counter outputs the receiving load signal for the first time and continues to count during the serial communication. The timer expires at a predetermined time interval. Each time the timer expires, the timer outputs a timer signal. In response to the timer signal, a synchronous signal is output to the microcomputer, the counter is cleared to zero, and data to be output to the microcomputer is loaded into a sending register.


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