HD64F38602R Datasheet, PDF (303/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 14 Serial Communication Interface 3 (SCI3, IrDA)
14.6 IrDA Operation
IrDA operation can be used with the SCI3. Figure 14.15 shows an IrDA block diagram.
If the IrDA function is enabled using the IrE bit in IrCR, the TXD3 and RXD3 pins in the SCI3
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/receiver
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.
TXD3/IrTXD
RXD3/IrRXD
IrDA
Phase inversion
Phase inversion
Pulse encoder
Pulse decoder
TXD
RXD
SCI3
IrCR
Figure 14.15 IrDA Block Diagram
Rev. 3.00 May 15, 2007 Page 271 of 518
REJ09B0152-0300