HD6473887 Datasheet, PDF (305/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

10. Serial Port Control Register (SPCR)
Bit
7
—
Initial value
1
Read/Write
—
6
5
4
3
2
1
0
— SPC32 SPC31 SCINV3 SCINV2 SCINV1 SCINV0
1
0
0
0
0
0
0
—
R/W
R/W
R/W
R/W
R/W
R/W
SPCR is an 8-bit readable/writable register that performs RXD₃₁, RXD₃₂, TXD₃₁, and TXD₃₂ pin
input/output data inversion switching. SPCR is initialized to H'C0 by a reset.
Bit 0: RXD₃₁ pin input data inversion switch
Bit 0 specifies whether or not RXD₃₁ pin input data is to be inverted.
Bit 0
SCINV0
0
1
Description
RXD₃₁ input data is not inverted
RXD₃₁ input data is inverted
(initial value)
Bit 1: TXD₃₁ pin output data inversion switch
Bit 1 specifies whether or not TXD₃₁ pin output data is to be inverted.
Bit 1
SCINV1
0
1
Description
TXD₃₁ output data is not inverted
TXD₃₁ output data is inverted
(initial value)
Bit 2: RXD₃₂ pin input data inversion switch
Bit 2 specifies whether or not RXD₃₂ pin input data is to be inverted.
Bit 2
SCINV2
0
1
Description
RXD₃₂ input data is not inverted
RXD₃₂ input data is inverted
(initial value)
288