
20.
Universal Asynchronous Receiver/Transmitter
KING BILLION ELECTRONICS CO., LTD
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HE84G761
HE80004 Series
June 30, 2003
This specification is subject to change without notice. Please contact sales person for the latest version before use.
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V1.01
The UART (Universal Asynchronous Receiver/Transmitter) interface provides serial communication
capabilities with other devices such as PC. Features include:
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Full duplex Asynchronous communication
Programmable transmission rate with internal baud rate generator with selectable bit rates
Double buffered Transmitter and Receiver.
Programmable Data length (from 5 to 8 bits)
Programmable stop bits (1, 1.5 or 2-stop bit) generation and detection
Programmable parity type (odd, even or no parity)
Error (parity, overrun and framing errors) detection
Fully prioritized interrupt system control
Line break generation and detection.
Example – 8-bit UART Frame Format: (1 Start Bit, 8 Data Bits, 1 Parity Bit, 1 Stop Bit)