Pular para o conteúdo principal
Knowledgebase
Home
Renesas Brasil - Knowledgebase

What should I do if parity error and framing errors occur?

Latest Updated:10/10/2008

Question:

(Serial Interface) Regarding receiving serial I/O data in UART mode, what causes parity errors (PE) or framing errors (FE)? And what should I do if these errors occur? [2008/10/10]

Answer:

(1) When serial I/O receive is enabled and parity checking is enabled (RE = 1 & PARE = 1), if the parity selected by PARS and that of the receive data differ, a parity error occurs.
(2) When serial I/O receive is enabled and parity checking is disabled (RE = 1 & PARE = 0), the parity bit is recognized as the stop bit. If this bit is not 1, a framing error occurs.

Please refer to the FAQ 106728 for how to restore your MCU after such errors occur.

(#107148)

Suitable Products
3803H
3803L
3823
3850A
3858
38D2
38D5
7544
7546
7547
7548
7549