參數資料
型號: TMP86CH09NG
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP32
封裝: 0.400 INCH, 1.78 MM PITCH, LEAD FREE, PLASTIC, SDIP-32
文件頁數: 25/120頁
文件大小: 1743K
代理商: TMP86CH09NG
Page 109
TMP86FH09ANG
10.9 Status Flag
10.9.1 Parity Error
When parity determined using the receive data bits differs from the received parity bit, the parity error flag
UARTSR<PERR> is set to “1”. The UARTSR<PERR> is cleared to “0” when the RDBUF is read after read-
ing the UARTSR.
Figure 10-5 Generation of Parity Error
10.9.2 Framing Error
When “0” is sampled as the stop bit in the receive data, framing error flag UARTSR<FERR> is set to “1”.
The UARTSR<FERR> is cleared to “0” when the RDBUF is read after reading the UARTSR.
Figure 10-6 Generation of Framing Error
10.9.3 Overrun Error
When all bits in the next data are received while unread data are still in RDBUF, overrun error flag
UARTSR<OERR> is set to “1”. In this case, the receive data is discarded; data in RDBUF are not affected.
The UARTSR<OERR> is cleared to “0” when the RDBUF is read after reading the UARTSR.
Parity
Stop
Shift register
pxxxx0*
1pxxxx0
xxxx0**
RXD pin
UARTSR<PERR>
INTRXD interrupt
After reading UARTSR then
RDBUF clears PERR.
Final bit
Stop
Shift register
xxxx0*
0xxxx0
xxx0**
RXD pin
UARTSR<FERR>
INTRXD interrupt
After reading UARTSR then
RDBUF clears FERR.
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