r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 894

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 15 Serial Communication Interface (SCI, IrDA)
15.3.10 IrDA Control Register (IrCR)
IrCR selects the function of SCI_0.
Rev. 1.00 Sep. 19, 2008 Page 866 of 1270
REJ09B0466-0100
Bit
7
6
5
4
3
Bit Name
IrE
IrCKS2
IrCKS1
IrCKS0
IrTxINV
0
Initial Value
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
IrDA Enable
Description
Specifies normal SCI mode or IrDA mode for
SCI_0 input/output.
0: Pins TxD0/IrTxD and RxD0/IrRxD function as
1: Pins TxD0/IrTxD and RxD0/IrRxD function as
IrDA Clock Select 2 to 0
Specifies the high pulse width in IrTxD output
pulse encoding when the IrDA function is enabled.
000: Pulse width = B × 3/16 (3/16 of bit rate)
001: Pulse width = φ/2
010: Pulse width = φ/4
011: Pulse width = φ/8
100: Pulse width = φ/16
101: Pulse width = φ/32
110: Pulse width = φ/64
111: Pulse width = φ/128
IrTx Data Invert
Specifies the logic level of the IrTxD output to be
inverted. When inversion is performed, the high
pulse width specified by bits 6 to 4 becomes the
low pulse width.
0: Transmit data is used as IrTxD output without
1: Transmit data is inverted before used as IrTxD
TxD0 and RxD0
IrTxD and IrRxD
change
output