Datasheet

Section 9 I/O Ports
Rev. 2.00 Jul. 04, 2007 Page 207 of 692
REJ09B0309-0200
Bit Bit Name
Initial
Value
R/W Description
4 SPC31 0 R/W P42/TXD31/IrTXD/TMOFH (PF3/TXD31/IrTXD) Pin
Function Switch
Selects whether pin P42/TXD31/IrTXD/TMOFH
(PF3/TXD31/IrTXD) is used as P42/TMOFH (PF3) or as
TXD31/IrTXD.
0: P42 (PF3) I/O pin or TMOFH output pin
1: TXD31/IrTXD output pin*
Note: Set the TE bit in SCR3_1 after having set this bit
to 1.
3 SCINV3 0 R/W TXD32 Pin Output Data Inversion Switch
Specifies whether the logic level of output data of the
TXD32 pin is to be inverted or not.
0: TXD32 output data is not inverted
1: TXD32 output data is inverted
2 SCINV2 0 R/W RXD32 Pin Input Data Inversion Switch
Specifies whether the logic level of input data of the
RXD32 pin is to be inverted or not.
0: RXD32 input data is not inverted
1: RXD32 input data is inverted
1 SCINV1 0 R/W TXD31/IrTXD Pin Output Data Inversion Switch
Specifies whether the logic level of output data of the
TXD31/IrTXD pin is to be inverted or not.
0: TXD31/IrTXD output data is not inverted
1: TXD31/IrTXD output data is inverted
0 SCINV0 0 R/W RXD31/IrRXD Pin Input Data Inversion Switch
Specifies whether the logic level of input data of the
RXD31/IrRXD pin is to be inverted or not.
0: RXD31/IrRXD input data is not inverted
1: RXD31/IrRXD input data is inverted
Note: When the serial port control register is modified, the data being input or output up to that
point is inverted immediately after the modification, and an invalid data change is input or
output. When modifying the serial port control register, modification must be made in a state
in which data changes are invalidated.