Datasheet

Section 16 Serial Communication Interface (SCI, IrDA)
(The H8S/2695 is not equipped with an IrDA function)
Page 754 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
16.2.10 IrDA Control Register (IrCR)
Bit : 7 6 5 4 3 2 1 0
IrE IrCKS2 IrCKS1 IrCKS0 — — — —
Initial value : 0 0 0 0 0 0 0 0
R/W : R/W R/W 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 (Initial value)
1 TxD0/IrTxD and RxD0/IrRxD pins operate as IrTxD and IrRxD
Bits 6 to 4—IrDA clock select 2 to 0 (IrCKS2 to IrCKS0): When the IrDA function is enabled,
these bits set the width of the High pulse when encoding the IrTxD output pulse.
Bit 6 Bit 5 Bit 4
IrCKS2 IrCKS1 IrCKS0 Description
0 0 0 B×3/16 (three sixteenths of bit rate) (Initial value)
1 φ/2
1 0 φ/4
1 φ/8
1 0 0 φ/16
1 φ/32
1 0 φ/64
1 φ/128
Bits 3 to 0—Reserved: These bits are always read as 0 and cannot be modified.