906
Chapter 20
Port Functions
User’s Manual U16580EE3V1UD00
20.3.4 Port
3
Port 3 is an 8-bit I/O port that can be set to input or output mode in 1-bit units.
(1)
Functions
•
Input/output data can be specified in 1-bit units by using the port register 3 (P3).
•
Input or output mode can be set in 1-bit units by using the port mode register 3 (PM3).
•
Port mode or control mode (for alternate function) can be specified in 1-bit units by using the
port mode control register 3 (PMC3).
•
The external interrupt request inputs shared with the input port functionality of port 3 are always
enabled in input port mode.
Table 20-7:
Alternate Function Pins and Port Types of Port 3
Note:
Alternate function not available on
μ
PD70F3447.
Port
Alternate Function
Remark
Port Type
Port 3
P30
RXDC0,
INTP4
Serial interface (UARTC0) input
External interrupt request input
9
P31
TXDC0
Serial interface (UARTC0) output
1S
P32
RXDC1,
INTP5
Serial interface (UARTC1) input
External interrupt request input
9
P33
TXDC1
Serial interface (UARTC1) output
1S
P34
FCRXD0
FCAN0 input
2A
P35
FCTXD0
FCAN0 output
1S
P36
FCRXD1
Note
FCAN1 input
Note
2A
P37
FCTXD1
Note
FCAN1 output
Note
1S
Содержание MuPD70F3187
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