Input/Output Pins; Register Descriptions; Table 14.1 Pin Configuration - Hitachi H8S/2628 Hardware Manual

14.2

Input/Output Pins

Table 14.1 shows the serial pins for each SCI channel.

Table 14.1 Pin Configuration

Channel Pin Name*
0 SCK0
RxD0
TxD0
2 SCK2
RxD2
TxD2
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. 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)
I/O Function
I/O SCI0 clock input/output
Input SCI0 receive data input
Output SCI0 transmit data output
I/O SCI2 clock input/output
Input SCI2 receive data input
Output SCI2 transmit data output
Rev. 1.0, 09/02, page 293 of 568