Rev. 1.0, 09/02, page 293 of 568
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
SCK0
I/O
SCI0 clock input/output
RxD0
Input
SCI0 receive data input
0
TxD0
Output
SCI0 transmit data output
SCK2
I/O
SCI2 clock input/output
RxD2
Input
SCI2 receive data input
2
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. 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)
Содержание H8S/2627
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