SH7108 Datasheet, PDF (319/560 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 10 Serial Communication Interface (SCI)
10.2 Input/Output Pins
Table 10.1 shows the SCI pin configuration.
Table 10.1 Pin Configuration
Channel
Pin Name*
I/O
Function
2
SCK2
I/O
SCI_2 clock input/output
RxD2
Input
SCI_2 receive data input
TxD2
Output
SCI_2 transmit data output
3
SCK3
I/O
SCI_3 clock input/output
RxD3
Input
SCI_3 receive data input
TxD3
Output
SCI_3 transmit data output
Note: * Pin names SCK, RxD, and TxD are used in the text for all channels, omitting the
channel designation.
10.3 Register Descriptions
The SCI has the following registers for each channel. For details on register addresses and register
states during each processing, refer to section 19, List of Registers.
Channel 2
• Serial mode register_2 (SMR_2)
• Bit rate register_2 (BRR_2)
• Serial control register_2 (SCR_2)
• Transmit data register_2 (TDR_2)
• Serial status register_2 (SSR_2)
• Receive data register_2 (RDR_2)
• Serial direction control register_2 (SDCR_2)
Channel 3
• Serial mode register_3 (SMR_3)
• Bit rate register_3 (BRR_3)
• Serial control register_3 (SCR_3)
• Transmit data register_3 (TDR_3)
• Serial status register_3 (SSR_3)
• Receive data register_3 (RDR_3)
• Serial direction control register_3 (SDCR_3)
Rev.1.00 Sep. 18, 2008 Page 285 of 522
REJ09B0069-0100