HD64F3670 Datasheet, PDF (181/323 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
Abbreviation
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.
• Receive shift register (RSR)
• Receive data register (RDR)
• Transmit shift register (TSR)
• Transmit data register (TDR)
• Serial mode register (SMR)
• Serial control register 3 (SCR3)
• Serial status register (SSR)
• Bit rate register (BRR)
Rev. 2.0, 03/02, page 157 of 298