1
Download 80296SA Microcontroller User`s Manual
Transcript
REGISTERS SBUF_RX Address: Reset State: SBUF_RX 1FB8H 00H The serial port receive buffer (SBUF_RX) register contains data received from the serial port. The serial port receiver is buffered and can begin receiving a second data byte before the first byte is read. Data is held in the receive shift register until the last data bit is received, then the data byte is loaded into SBUF_RX. If data in the shift register is loaded into SBUF_RX before the previous byte is read, the overflow error bit is set (SP_STATUS.2). The data in SBUF_RX will always be the last byte received, never a combination of the last two bytes. 7 0 Data Received Bit Number 7:0 Function Data Received This register contains the last byte of data received from the serial port. C-51
