HD64F38602R Datasheet, PDF (283/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 14 Serial Communication Interface 3 (SCI3, IrDA)
14.3.9
Serial Port Control Register (SPCR)
SPCR selects the function of the TXD3 (IrTXD) pin and whether to invert the input/output data of
the RXD3 (IrRXD) and TXD3 (IrTXD) pins.
Initial
Bit
Bit Name Value R/W Description
7, 6

All 1 
Reserved
These bits are always read as 1 and cannot be
modified.
5

0

Reserved
This bit is always read as 0 and cannot be modified.
4
SPC3
0
R/W P32/TXD3/IrTXD Pin Function Switch
Selects whether pin P32/TXD3/IrTXD is used as P32 or
as TXD3/IrTXD.
0: P32 I/O pin
1: TXD3/IrTXD output pin
Set the TE bit in SCR after setting this bit to 1.
3, 2

All 0 
Reserved
These bits are always read as 0 and cannot be
modified.
1
SCINV1 0
R/W TXD3/IrTXD Pin Output Data Inversion Switch
Selects whether output data of the TXD3/IrTXD pin is
inverted or not.
0: Output data of TXD3/IrTXD pin is not inverted.
1: Output data of TXD3/IrTXD pin is inverted.
0
SCINV0 0
R/W RXD3/IrRXD Pin Input Data Inversion Switch
Selects whether input data of the RXD3/IrRXD pin is
inverted or not.
0: Input data of RXD3/IrRXD pin is not inverted.
1: Input data of RXD3/IrRXD pin 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.
Rev. 3.00 May 15, 2007 Page 251 of 518
REJ09B0152-0300