Datasheet

ATmega48/88/168 Automotive [DATASHEET]
7530K–AVR–07/14
68
• ADC2/PCINT10 – Port C, Bit 2
PC2 can also be used as ADC input channel 2. Note that ADC input channel 2 uses analog power.
PCINT10: pin change interrupt source 10. The PC2 pin can serve as an external interrupt source.
• ADC1/PCINT9 – Port C, Bit 1
PC1 can also be used as ADC input channel 1. Note that ADC input channel 1 uses analog power.
PCINT9: pin change interrupt source 9. The PC1 pin can serve as an external interrupt source.
• ADC0/PCINT8 – Port C, Bit 0
PC0 can also be used as ADC input channel 0. Note that ADC input channel 0 uses analog power.
PCINT8: pin change interrupt source 8. The PC0 pin can serve as an external interrupt source.
Table 10-7 and Table 10-8 on page 68 relate the alternate functions of port C to the overriding signals shown in
Figure 10-5 on page 62.
Table 10-7. Overriding Signals for Alternate Functions in PC6..PC4
(1)
Signal Name PC6/RESET/PCINT14 PC5/SCL/ADC5/PCINT13 PC4/SDA/ADC4/PCINT12
PUOE RSTDISBL TWEN TWEN
PUOV 1 PORTC5 × PUD PORTC4 × PUD
DDOE RSTDISBL TWEN TWEN
DDOV 0 SCL_OUT SDA_OUT
PVOE 0 TWEN TWEN
PVOV 0 0 0
DIEOE RSTDISBL + PCINT14 × PCIE1 PCINT13 × PCIE1 + ADC5D PCINT12 × PCIE1 + ADC4D
DIEOV RSTDISBL PCINT13 × PCIE1 PCINT12 × PCIE1
DI PCINT14 INPUT PCINT13 INPUT PCINT12 INPUT
AIO RESET INPUT ADC5 INPUT / SCL INPUT ADC4 INPUT / SDA INPUT
Note: 1. When enabled, the 2-wire serial interface enables slew-rate controls on the output pins PC4 and PC5. This is
not shown in the figure. In addition, spike filters are connected between the AIO outputs shown in the port
figure and the digital logic of the TWI module.
Table 10-8. Overriding Signals for Alternate Functions in PC3..PC0
Signal Name PC3/ADC3/PCINT11 PC2/ADC2/PCINT10 PC1/ADC1/PCINT9 PC0/ADC0/PCINT8
PUOE 0 0 0 0
PUOV 0 0 0 0
DDOE 0 0 0 0
DDOV 0 0 0 0
PVOE 0 0 0 0
PVOV 0 0 0 0
DIEOE
PCINT11 × PCIE1 +
ADC3D
PCINT10 × PCIE1 +
ADC2D
PCINT9 × PCIE1 +
ADC1D
PCINT8 × PCIE1 +
ADC0D
DIEOV PCINT11 × PCIE1 PCINT10 × PCIE1 PCINT9 × PCIE1 PCINT8 × PCIE1
DI PCINT11 INPUT PCINT10 INPUT PCINT9 INPUT PCINT8 INPUT
AIO ADC3 INPUT ADC2 INPUT ADC1 INPUT ADC0 INPUT