Rainbow Electronics ATtiny43U - Manual (Page 70)

70
8048B–AVR–03/09
ATtiny43U
11.3.1 Alternate Functions of Port A
The Port A pins with alternate function are shown in Table 11-3 on page 70 .
• Port A, Bit 0 – ADC0/PCINT0
ADC0: Analog to Digital Converter, Channel 0 .
PCINT0: Pin Change Interrupt source 0. The PA0 pin can serve as an external interrupt source
for pin change interrupt 0.
• Port A, Bit 1 – ADC1/PCINT1
ADC1: Analog to Digital Converter, Channel 1 .
PCINT1: Pin Change Interrupt source 1. The PA1 pin can serve as an external interrupt source
for pin change interrupt 0.
• Port A, Bit 2 – ADC2/PCINT2
ADC2: Analog to Digital Converter, Channel 2 .
PCINT2: Pin Change Interrupt source 2. The PA2 pin can serve as an external interrupt source
for pin change interrupt 0.
• Port A, Bit 3 – ADC3/PCINT3
ADC3: Analog to Digital Converter, Channel 3 .
PCINT3: Pin Change Interrupt source 3. The PA3 pin can serve as an external interrupt source
for pin change interrupt 0.
Table 11-3. Port A Pins Alternate Functions
Port Pin Alternate Function
PA0
ADC0: ADC input channel 0.
PCINT0:Pin change interrupt 0 source 0.
PA1
ADC1: ADC input channel 1.
PCINT1:Pin change interrupt 0 source 1.
PA2
ADC2: ADC input channel 2.
PCINT2: Pin change interrupt 0 source 2.
PA3
ADC3: ADC input channel 3.
PCINT3: Pin change interrupt 0 source 3.
PA4
AIN0: Analog Comparator Positive Input.
PCINT4: Pin change interrupt 0 source 4.
PA5
AIN1: Analog Comparator Negative Input.
PCINT5: Pin change interrupt 0 source 5.
PA6
PCINT6: Pin change interrupt 0 source 6.
CLKI: External Clock Input.
PA7
RESET: Reset pin.
dW: debugWire I/O.
PCINT7: Pin change interrupt 0 source 7