HD64F3670 Datasheet, PDF (179/305 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

13.2 Input/Output Pins
Table 13-1 shows the SCI3 pin configuration.
Table 13-1 Pin Configuration
Pin Name
SCI3 clock
SCI3 receive data input
SCI3 transmit data output
Abbrev.
SCK3
RXD
TXD
I/O
I/O
Input
Output
Function
SCI3 clock input/output
SCI3 receive data input
SCI3 transmit data output
13.3 Register Descriptions
The SCI3 has the following registers for each channel. For details on register addresses and
register states during each process, refer to appendix B, Internal I/O Register.
• Receive Shift Register (RSR)
• Receive Data Register (RDR)
• Transmit Shift Register (TSR)
• Transmit Data Register (TDR)
• Serial Mode Register (SMR)
• Serial Control Register3 (SCR3)
• Serial Status Register (SSR)
• Bit Rate Register (BRR)
Rev. 1.0, 03/01, page 155 of 280