Datasheet

Section 15 Serial Communication Interface (SCI and IrDA)
Rev. 3.00 Mar 21, 2006 page 361 of 788
REJ09B0300-0300
15.2 Input/Output Pins
Table 15.1 shows the input/output pins for each SCI channel.
Table 15.1 Pin Configuration
Channel Symbol
*
Input/Output Function
SCK0 Input/Output Channel 0 clock input/output
RxD0 Input Channel 0 receive data input
0
TxD0 Output Channel 0 transmit data output
SCK1 Input/Output Channel 1 clock input/output
RxD1 Input Channel 1 receive data input
1
TxD1 Output Channel 1 transmit data output
SCK2 Input/Output Channel 2 clock input/output
RxD2/IrRxD Input Channel 2 receive data input (normal/IrDA)
2
TxD2/IrTxD Output Channel 2 transmit data output (normal/IrDA)
Note: * Pin names SCK, RxD, and TxD are used in the text for all channels, omitting the
channel designation.
15.3 Register Descriptions
The SCI has the following registers for each channel.
• 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)
• Serial interface mode register (SCMR)
• Bit rate register (BRR)
• Keyboard comparator control register (KBCOMP)