Serial Interface Reception And Transmission Registers - Panasonic MN103S User Manual

12.2.2

Serial Interface Reception and Transmission Registers

Serial interface 0 and 1 each 8-bit data buffer register for transmission/reception.
Data is loaded by reading data from the SCnRB register during serial reception.
Reception data can be loaded when an interrupt occurs or when the SCnRXA flag of the SCnSTR register is "1".
In the case of 7-bit transmission, the MSB (bit 7) is "0". Proper operation of this register is not guaranteed if data
is written. If the register is read through 16-bit access, the reception flag in the status register is cleared.
Data transmission is initiated by writing data to the SCnTB register during serial transmission.
Data transmission starts during 4 transmit clock cycles from write. In the case of 7-bit transmission, the MSB (bit
7) is ignored.
Serial 0 Reception Register (SC0RB: 0x0000A104) [8,16-bit Access Register]
bp 7 6
Flag SCA0 SCA0
RB7 RB6
At reset 0 0
Access R R
Serial 1 Reception Register (SC1RB: 0x0000A114) [8,16-bit Access Register]
bp 7 6
Flag SCA1 SCA1
RB7 RB6
At reset 0 0
Access R R
Serial 0 Transmission Register (SC0TB: 0x0000A10C) [8,16-bit Access Register]
bp 7 6
Flag SCA SCA
0TB 0TB
7 6
At reset 0 0
Access R/W R/W
Serial 1 Transmission Register (SC1TB: 0x0000A11C) [8,16-bit Access Register]
bp 7 6
Flag SCA SCA
1TB 1TB
7 6
At reset 0 0
Access R/W R/W
5 4 3 2
SCA0 SCA0 SCA0 SCA0
RB5 RB4 RB3 RB2
0 0 0 0
R R R R
5 4 3 2
SCA1 SCA1 SCA1 SCA1
RB5 RB4 RB3 RB2
0 0 0 0
R R R R
5 4 3 2
SCA SCA SCA SCA
0TB 0TB 0TB 0TB
5 4 3 2
0 0 0 0
R/W R/W R/W R/W
5 4 3 2
SCA SCA SCA SCA
1TB 1TB 1TB 1TB
5 4 3 2
0 0 0 0
R/W R/W R/W R/W
1 0
SCA0 SCA0
RB1 RB0
0 0
R R
1 0
SCA1 SCA1
RB1 RB0
0 0
R R
1 0
SCA SCA
0TB 0TB
1 0
0 0
R/W R/W
1 0
SCA SCA
1TB 1TB
1 0
0 0
R/W R/W
Chapter 12
Serial interface 0 and 1
Control Registers XII - 5