IC規格書翻譯–––英翻中

If the BIT9 and PARITY bits in register UxUCR are set high, parity generation and
detection is enabled. The parity is computed and transmitted as the ninth bit, and during reception, the parity is computed and compared to the received ninth bit. If there is a parity error, the UxCSR.ERR bit is set high. This bit is cleared when UxCSR is read.
假如寄存器UxUCR中的BIT9和PARITY位元設定為高值時，即可啟動配對位元生成和偵測功能。配對位元可經過運算而傳輸成為第9個位元，而在傳輸接收期間中，配對位元可進行運算，跟所接收到的第9個位元進行比較。假如配對位元有錯誤時，則UxCSR.ERR位元設定為高值，UxCSR讀取位元時，即可清除本位元。

The number of stop bits to be transmitted is set to one or two bits determined by the
register bit UxUCR.SPB. The receiver willalways check for one stop bit. If the first
stop bit received during reception is not at the expected stop bit level, a framing error is signaled by setting register bit UxCSR.FE high. UxCSR.FE is cleared when UxCSR is read. The receiver will check both stop bits when UxUCR.SPB is set.

要傳輸的停止位元數量可依據寄存器t UxUCR.SPB 來判定，而設定為1個或2個的數量。接收器應隨時進行單一停止位元的檢查。假如在接收期間所收到的第1個停止位元，非屬所預期停止位元的位階時，則藉由將寄存器UxCSR.F 的位元設定為高值，來發出成幀誤差的訊號。在讀取UxCSR時，接收器在設定 UxUCR.SPB時，即可檢查兩個停止位元。