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13.1.3
Pin Configuration
Table 13-1 shows the serial pins for each SCI channel.
Table 13-1 SCI Pins
Channel
Pin Name
0
Serial clock pin 0
Receive data pin 0
Transmit data pin 0
1
Serial clock pin 1
Receive data pin 1
Transmit data pin 1
2*
Serial clock pin 2
Receive data pin 2
Transmit data pin 2
Notes: Pin names SCK, RxD, and TxD are used in the text for all channels, omitting the channel
designation.
* H8S/2648, H8S/2648R, and H8S/2647 only.
434
Symbol
I/O
SCK0
I/O
RxD0
Input
TxD0
Output
SCK1
I/O
RxD1
Input
TxD1
Output
SCK2
I/O
RxD2
Input
TxD2
Output
Function
SCI0 clock input/output
SCI0 receive data input
SCI0 transmit data output
SCI1 clock input/output
SCI1 receive data input
SCI1 transmit data output
SCI2 clock input/output
SCI2 receive data input
SCI2 transmit data output
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