Datasheet

Section 15 Serial Communication Interface (SCI, IrDA)
Rev. 4.00 Jun 06, 2006 page 390 of 1004
REJ09B0301-0400
15.1.3 Pin Configuration
Table 15.1 shows the serial pins used by the SCI.
Table 15.1 SCI Pins
Channel Pin Name Symbol
*
I/O Function
0 Serial clock pin 0 SCK0 I/O SCI0 clock input/output
Receive data pin 0 RxD0 Input SCI0 receive data input
Transmit data pin 0 TxD0 Output SCI0 transmit data output
1 Serial clock pin 1 SCK1 I/O SCI1 clock input/output
Receive data pin 1 RxD1 Input SCI1 receive data input
Transmit data pin 1 TxD1 Output SCI1 transmit data output
2 Serial clock pin 2 SCK2 I/O SCI2 clock input/output
Receive data pin 2 RxD2/IrRxD Input SCI2 receive data input
(normal/IrDA)
Transmit data pin 2 TxD2/IrTxD Output SCI2 transmit data output
(normal/IrDA)
Note: * The abbreviations SCK, RxD, and TxD are used in the text, omitting the channel
number.
15.1.4 Register Configuration
The SCI has the internal registers shown in table 15.2. These registers are used to specify
asynchronous mode or synchronous mode, the data format, and the bit rate, and to control the
transmitter/receiver.