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CHAPTER 17 DTP/EXTERNAL INTERRUPTS
17.3 Configuration of DTP/External Interrupt
This section lists and details the pins, interrupt factors, and registers in the DTP/
external interrupt.
■ Pins of DTP/External Interrupt
The pins used by the DTP/external interrupt serve as general-purpose I/O ports.
Table 17.3-1 lists the pin functions and the pin setting required for use in the DTP/external interrupt.
Table 17.3-1 Pins of DTP/External Interrupt
Pin Name Pin Function Pin Settings Required for Use in DTP/
External Interrupt
P54/AN12/TOT3
/INT8
General-purpose I/O ports, analog input,
event pin for reload timer, DTP external
interrupt inputs • Set external interrupt factor select register
(EISSR) to 0.
• Set as input ports in port direction register
(DDR5).
P55/AN13/INT10
General-purpose I/O ports, analog input,
DTP external interrupt inputs
P56/AN14/INT11
P57/AN15/INT13
P42/
INT9R/
RX1/
General-purpose I/O ports, DTP external
interrupt inputs, CAN1 input Rx1
• Set external interrupt factor select register
(EISSR) to 1.
• Set as input ports in port direction register
(DDR4).
P80/
INT12R/
ADTG
General-purpose I/O ports, DTP external
interrupt inputs, A/D converter trigger input
ADTG
• Set external interrupt factor select register
(EISSR) to 1.
• Set as input ports in port direction register
(DDR8).
P82/
INT14R/
SIN0/
TIN2
General-purpose I/O ports, DTP external
interrupt inputs, UART0 input SIN0, reload
timer 2 trigger input TIN2
P84/
INT15R/
SCK0
General-purpose I/O ports, DTP external
interrupt inputs, UART0 clock I/O SCK0