435
SCI
Serial
receive
data
Internal data bus
PDRR
*
SCPT[0]/RxD0
PDRR: PDR read
Note:
*
When reading the RxD0 pin, set the RE bit in SCSCR to 1.
Legend
Figure 14.4 SCPT[0]/RxD0 Pin
14.1.3
Pin Configuration
The SCI has the serial pins summarized in table 14.1.
Table 14.1
SCI Pins
Pin Name
Abbreviation
I/O
Function
Serial clock pin
SCK0
I/O
Clock I/O
Receive data pin
RxD0
Input
Receive data input
Transmit data pin
TxD0
Output
Transmit data output
Note:
These pins are made to function as serial pins by performing SCI operation settings with the
TE, RE, CKEI, and CKE0 bits in SCSCR and the C/
A
bit in SCSMR. Break state
transmission and detection can be performed by means of the SCI’s SCSPTR register.
Содержание SH7709S
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