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16.2
Input/Output Pins
Table 16.1 shows the input/output pins for each SCI channel.
Table 16.1 Pin Configuration
Symbol *
Channel
0
SCK0
RxD0
TxD0
SSE0I
1
SCK1
RxD1/IrRxD
TxD1/IrTxD
2
SCK2
RxD2
TxD2
SSE2I
Note:
* Pin names SCK, RxD, and TxD are used in the text for all channels, omitting the
channel designation.
16.3
Register Descriptions
The SCI has the following registers for each channel. Some bits in the serial mode register (SMR),
serial status register (SSR), and serial control register (SCR) have different functions in different
modes—normal serial communication interface mode and smart card interface mode; therefore,
the bits are described separately for each mode in the corresponding register sections.
• Receive shift register (RSR)
• Receive data register (RDR)
• Transmit data register (TDR)
• Transmit shift register (TSR)
• Serial mode register (SMR)
• Serial control register (SCR)
• Serial status register (SSR)
• Smart card mode register (SCMR)
• Bit rate register (BRR)
Section 16 Serial Communication Interface (SCI, IrDA, and CRC)
Input/Output
Function
Input/Output
Channel 0 clock input/output
Input
Channel 0 receive data input
Output
Channel 0 transmit data output
Input
Channel 0 stop input
Input/Output
Channel 1 clock input/output
Input
Channel 1 receive data input (normal/IrDA)
Output
Channel 1 transmit data output (normal/IrDA)
Input/Output
Channel 2 clock input/output
Input
Channel 2 receive data input
Output
Channel 2 transmit data output
Input
Channel 2 stop input
Rev. 3.00 Jan 25, 2006 page 391 of 872
REJ09B0286-0300
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