beautypg.com

Asynchronous serial port, Chapter 10 – Texas Instruments TMS320C2XX User Manual

Page 399

background image

10-1

Asynchronous Serial Port

Asynchronous Serial Port

The ’C2xx has an asynchronous serial port that can be used to transfer data
to and from other devices. The port has several important features:

-

Full-duplex transmit and receive operations at the maximum transfer rate

-

Data-word length of eight bits for both transmit and receive

-

Capability for using one or two stop bits

-

Double buffering in all modes to transmit and receive data

-

Adjustable baud rate of up to 250,000 10-bit characters per second

-

Automatic baud-rate detection logic

For examples of program code for the asynchronous serial port, see Appendix C,
Program Examples.

Topic

Page

10.1 Overview of the Asynchronous Serial Port

10-2

. . . . . . . . . . . . . . . . . . . . .

10.2 Components and Basic Operation

10-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.3 Controlling and Resetting the Port

10-7

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.4 Transmitter Operation

10-19

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.5 Receiver Operation

10-20

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 10