SH7046 Datasheet, PDF (363/611 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7046 Series

Section 12 Serial Communication Interface (SCI)
12.2 Input/Output Pins
Table 12.1 shows the serial pins for each SCI channel.
Table 12.1 Pin Configuration
Channel
Pin Name^*
I/O
Function
2
SCK2
I/O
SCI2 clock input/output
RxD2
Input
SCI2 receive data input
TxD2
Output
SCI2 transmit data output
3
SCK3
I/O
SCI3 clock input/output
RxD3
Input
SCI3 receive data input
TxD3
Output
SCI3 transmit data output
Notes: * Pin names SCK, RxD, and TxD are used in the text for all channels, omitting the
channel designation.
12.3 Register Descriptions
The SCI has the following registers for each channel. For details on register addresses and register
states during each processing, refer to appendix A, Internal I/O Register.
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)
Rev. 4.00 Dec 05, 2005 page 319 of 564
REJ09B0270-0400