Apparatus and method for serial data communication utilizing gen

Details Apparatus and method for serial data communication utilizing gen Apparatus and method for serial data communication utilizing gen

1997-05-30

1999-05-11

Sheikh, Ayaz R.

395306, G06F13/00

Patent

active

059037377

ABSTRACT:
An apparatus and method for serial data communication capable of performing an inter integrated circuit (I.sup.2 C) serial data communication utilizing a general microcomputer having no built-in hardware for the I.sup.2 C serial communication. In the apparatus, a start condition for a start of serial data transmission or reception is detected by a start condition detecting section utilizing an input serial clock signal and serial data of an I.sup.2 C communication type, and a stop condition for a stop of the serial data transmission or reception is detected by a stop condition detecting section utilizing the serial clock and serial data. A microcomputer generates and releases an interrupt for the serial data transmission or reception in accordance with start and stop signals provided from the start and stop condition detecting sections, respectively, and then performs transmission or reception of the serial clock signal and serial data when the interrupt is generated.

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