HD6417750RF240V Datasheet, PDF (351/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 14 Serial Communication Interface (SCI)
14.2 Input/Output Pins
Table 14.1 shows the serial pins for each SCI channel.
Table 14.1 Pin Configuration
Channel
Pin Name^*
I/O
Function
0
SCK0
I/O
SCI0 clock input/output
RxD0
Input
SCI0 receive data input
TxD0
Output
SCI0 transmit data output
1
SCK1
I/O
SCI1 clock input/output
RxD1
Input
SCI1 receive data input
TxD1
Output
SCI1 transmit data output
2
SCK2
I/O
SCI2 clock input/output
RxD2
Input
SCI2 receive data input
TxD2
Output
SCI2 transmit data output
Note: * Pin names SCK, RxD, and TxD are used in the text for all channels, omitting the
channel designation.
14.3 Register Descriptions
The SCI has the following registers for each channel. For details on register addresses and register
states during each process, refer to appendix A, On-Chip I/O Register. The serial mode register
(SMR), serial status register (SSR), and serial control register (SCR) are described separately for
normal serial communication interface mode and Smart Card interface mode because their bit
functions differ in part.
• 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)
• Smart Card Mode Register (SCMR)
• Bit Rate Register (BRR)
Rev. 7.00 Sep. 11, 2009 Page 315 of 566
REJ09B0211-0700