Hitachi H8/3827R Series Hardware Manual page 403

SPCR—Serial Port Control Register
Bit 7
—
Initial value 1
Read/Write —
P3 TXD
5
0 Functions as P3
1 Functions as TXD
P4 /TXD pin function switch
2 32
0 Function as P4 I/O pin
2
1 Function as TXD
32
6 5
— SPC32
1 0
— R/W
RXD
32
0
1
TXD pin output data inversion switch
32
0 TXD output data is not inverted
32
1 TXD output data is inverted
32
pin function switch
31
I/O pin
5
output pin
31
output pin
H'91
4 3
SPC31 SCINV3
0 0
R/W R/W
RXD pin input data inversion switch
31
0 RXD
1 RXD
TXD pin output data inversion switch
31
0 TXD output data is not inverted
31
1 TXD output data is inverted
31
pin input data inversion switch
RXD input data is not inverted
32
RXD input data is inverted
32
2 1
SCINV2 SCINV1
0 0
R/W R/W
input data is not inverted
31
input data is inverted
31
SCI
0
SCINV0
0
R/W
399