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UART/Serial Channel (2/2)
(8-3) UART/SIO Channel1
Symbol
Name
Address
Serial
SC1BUF
Channel 1
208H
Buffer
Serial
SC1CR
Channel 1
209H
Control
Serial
SC1-
Channel 1
20AH
MOD0
Mode
Baud Rate
BR1CR
20BH
Control
Serial
BR1-AD
Channel 1
20CH
D
K
setting
Register
Serial
SC1-MO
Channel 1
20DH
D1
Mode1
7
6
5
RB7/TB7
RB6/TB6
RB5/TB5
RB8
EVEN
PE
R
R/W
0
0
0
Receiving
Parity
1: Parity
data bit 8
0: Odd
Enable
1: Even
TB8
CTSE
RXE
0
0
0
1: CTS
1: Receive
Transmission
Enable
Enable
data bit 8
BR1ADD
BR1CK1
0
0
0
00: φT0
Always write
1: (16-K)/16
01: φT2
0.
divided
10: φT8
Enable
11: φT32
I2S1
FDPX1
R/W
R/W
0
0
IDLE2
I/O interface
0: Stop
mode
1: Operate
1: full Duplex
0: Half Duplex
91C815-
4
3
RB4/TB4
RB3/TB3
RB2/TB2
R (Receiving)/W (Transmission)
Undefined
OERR
PERR
FERR
R (Cleared to 0 by reading)
0
0
1: Error
Over Run
Parity
Framing
WU
SM1
SM0
R/W
0
0
1: Wake up
00: I/O Interface
Enable
01: UART 7 bit
10: UART 8 bit
11: UART 9 bit
BR1CK
BR1S3
BR1S2
R/W
0
0
BR1K3
BR1K2
0
Set the frequency divisor K
264
TMP91C815
2
1
0
RB1/TB1
RB0/TB0
SCLKS
IOC
R/W
0
0
0
0: SCLK1↑
1: Input
1: SCLK1↓
SCLK1 pin
SC1
SC0
0
0
0
00: TA0TRG
01: baud rate generator
10: internal clock f
SYS
11: external clock SCLK1
BR1S1
BR1S0
0
0
0
Dividing value
0 to F
BR1K1
BR1K0
R/W
0
0
0
1 to F
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