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Serial Interface
Serial n transmission buffer (n = 1, 2)
Register symbol SCnTXB
Address:
x'34000818 (n=1), x'34000828 (n=2)
Purpose:
This register writes the transmission data to serial interface n.
Bit No.
7
6
Bit
SCn
SCn
SCn
name
TXB7 TXB6 TXB5 TXB4 TXB3 TXB2 TXB1 TXB0
Reset
0
0
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Data is transmitted by writing it to this buffer.
Serial n reception buffer (n = 1, 2)
Register symbol: SCnRXB
Address:
x'34000819 (n=1), x'34000829(n=2)
Purpose:
This register reads in the reception data of serial interface n.
Bit No.
7
6
Bit
SCn
SCn
SCn
name
RXB7 RXB6 RXB5 RXB4 RXB3 RXB2 RXB1 RXB0
Reset
0
0
Access
R
R
Reception data is gotten by reading this buffer at the end of reception.
In the case of a 7-bit transfer, the MSB (bit 7) is "0".
13-30
5
4
3
2
1
SCn
SCn
SCn
SCn
0
0
0
0
0
5
4
3
2
1
SCn SC0n SCn
SCn
0
0
0
0
0
R
R
R
R
R
0
SCn
0
0
SCn
0
R
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