Irda Control Register (Ircr) - Renesas H8S/2633 Series Hardware Manual

Bit 1—Reserved: This bit is always read as 1 and cannot be modified.
Bit 0—Smart Card Interface Mode Select (SMIF): When the smart card interface operates as a
normal SCI, 0 should be written in this bit.
Bit 0
SMIF Description
0 Operates as normal SCI (smart card interface function disabled)
1 Smart card interface function enabled

16.2.10 IrDA Control Register (IrCR)

Bit : 7
IrE
Initial value : 0
R/W : R/W
IrCR is an 8-bit read/write register that selects the SCI0 function.
IrCR is initialized to H'00 when in hardware standby mode.
Note: This register's functions are not supported in the H8S/2695. Only 0 should be written to
this register.
Bit 7—IrDA enable (IrE): Sets SCI0 input and output for normal SCI operation or IrDA
operation.
Bit 7
IrE Description
0 TxD0/IrTxD and RxD0/IrRxD pins operate as TxD0 and RxD0
1 TxD0/IrTxD and RxD0/IrRxD pins operate as IrTxD and IrRxD
720
6 5
IrCKS2 IrCKS1 IrCKS0
0 0
R/W R/W
4 3
—
0 0
R/W —
(Initial value)
2 1 0
— — —
0 0 0
— — —
(Initial value)