SH7720 Datasheet, PDF (702/1524 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 19 Infrared Data Association Module (IrDA)
19.2 Input/Output Pins
Table 19.1 shows the IrDA pin configuration.
Table 19.1 Pin Configuration
Name
Pin Name
I/O
Function
IrDA receive data
IrRX
Input
Receive data input
IrDA transmit data
IrTX
Output
Transmit data output
Note: Clock input from the serial clock pin cannot be set in IrDA mode.
19.3 Register Description
The IrDA has the following internal registers. Refer to section 37, List of Registers, for more
details on the addresses and states of these registers in each operating mode.
• IrDA mode register (SCIMR)
19.3.1 IrDA Mode Register (SCIMR)
SCIMR selects IrDA or SCIF mode and selects the IrDA output pulse width.
IrDA operates when the IRMOD bit is set to 1. When the IRMOD bit is cleared to 0, IrDA can
operate as an SCIF.
Bit
15 to 8
Bit Name

7
IRMOD
Initial Value R/W
All 0
R
0
R/W
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
IrDA Mode
Selects whether this module operates as an
IrDA serial communication interface or as an
SCIF.
0: Operates as an SCIF
1: Operates as an IrDA
Rev. 3.00 Jan. 18, 2008 Page 640 of 1458
REJ09B0033-0300