Panasonic MN103001G/F01K - Manual (Page 333)

Serial Interface
13-31
Serial n status register (n=1,2)
Register symbol: SCnSTR
Address: x'3400081C (n=1), x'3400082C (n=2)
Purpose: This register indicates the status of serial interface n.
Bit No. 7 6 5 4 3 2 1 0
Bit SCn SCn SCn SCn
– –
SCn SCn
name TXF RXF TBF RBF PEF OEF
Reset 0 0 0 0 0 0 0 0
Access R R R R R R R R
Bit No. Bit name Description
0 SCnOEF Overrun error indication
0: No error
1: Overrun error occurred
1 SCnPEF Parity error indication
0: No error
1: Parity error occurred
3 to 2 — "0" is returned when these bits are read.
4 SCnRBF Reception buffer status indication
0: Reception buffer empty
1: Data exists in the reception buffer
5 SCnTBF Transmission buffer status indication
0: Transmission buffer empty
1: Data exists in the transmission buffer
6 SCnRXF Reception status indication
0: Waiting for reception
1: Reception in progress
7 SCnTXF Transmission status indication
0: Ready for transmission
1: Transmission in progress