Irda Operation; Figure 15.33 Irda Block Diagram - Renesas H8S Series Hardware Manual

16-bit single-chip microcomputer

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Section 15 Serial Communication Interface (SCI, IrDA)

IrDA Operation

IrDA operation can be used with SCI_1. Figure 15.33 shows an IrDA block diagram.

If the IrDA function is enabled using the IrE bit in SCICR, the TxD1 and RxD1 signals for SCI_1

are allowed to encode and decode the waveform based on the IrDA standard version 1.0 (function

as the IrTxD and IrRxD pins). Connecting these pins to the infrared data transceiver achieves

infrared data communication based on the system defined by the IrDA standard version 1.0.

In the system defined by the IrDA standard version 1.0, communication is started at a transfer rate

of 9600 bps, which can be modified as required. The IrDA interface provided by this LSI does not

incorporate the capability of automatic modification of the transfer rate; the transfer rate must be

modified through programming.

Rev. 3.00 Jul. 14, 2005 Page 492 of 986

REJ09B0098-0300

Phase inversion

Pulse encoder

Pulse decoder

Phase inversion

H8s/2100 series H8s/2114r R4f2114r