ATtiny48 datasheet(71/266 Pages) ATMEL

71 / 266 page

8008C–AVR–03/09

ATtiny48/88

• INT1/PCINT19 – Port D, Bit 3

INT1, External Interrupt source 1: The PD3 pin can serve as an external interrupt source.

PCINT19: Pin Change Interrupt source 19. The PD3 pin can serve as an external interrupt

source.

• INT0/PCINT18 – Port D, Bit 2

INT0, External Interrupt source 0: The PD2 pin can serve as an external interrupt source.

PCINT18: Pin Change Interrupt source 18. The PD2 pin can serve as an external interrupt

source.

• PCINT17 – Port D, Bit 1

PCINT17: Pin Change Interrupt source 17. The PD1 pin can serve as an external interrupt

source.

• PCINT16 – Port D, Bit 0

PCINT16: Pin Change Interrupt source 16. The PD0 pin can serve as an external interrupt

source.

Table 10-12 and Table 10-13 relate the alternate functions of Port D to the overriding signals

shown in Figure 10-6 on page 61.

Table 10-12. Overriding Signals for Alternate Functions PD7..PD4

Signal

Name

PD7/AIN1/PCINT23

PD6/AIN0/PCINT22

PD5/T1/PCINT21

PD4/T0/PCINT20

PUOE

000

PUO

000

DDOE

DDOV

PVOE

000

PVOV

000

DIEOE

PCINT23 • PCIE2

PCINT22 • PCIE2

PCINT21 • PCIE2

PCINT20 • PCIE2

DIEOV

111

PCINT23 INPUT

PCINT22 INPUT

PCINT21 INPUT

T1 INPUT

PCINT20 INPUT

T0 INPUT

AIO

AIN1 INPUT

AIN0 INPUT

–

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