Datasheet

72
4317K–AVR–03/2013
AT90PWM2/3/2B/3B
11.3.3 Alternate Functions of Port C
The Port C pins with alternate functions are shown in Table 11-6.
The alternate pin configuration is as follows:
• D2A – Bit 7
D2A, Digital to Analog output
• ADC10/ACMP1 – Bit 6
ADC10, Analog to Digital Converter, input channel 10.
ACMP1, Analog Comparator 1 Positive Input. Configure the port pin as input with the internal
pull-up switched off to avoid the digital port function from interfering with the function of the Ana-
log Comparator.
• ADC9/AMP1+ – Bit 5
ADC9, Analog to Digital Converter, input channel 9.
AMP1+, Analog Differential Amplifier 1 Positive Input Channel.
• ADC8/AMP1- – Bit 4
ADC8, Analog to Digital Converter, input channel 8.
AMP1-, Analog Differential Amplifier 1 Negative Input Channel.
• T1/PSCOUT23 – Bit 3
T1, Timer/Counter1 counter source.
PSCOUT23: Output 3 of PSC 2.
• T0/PSCOUT22 – Bit 2
T0, Timer/Counter0 counter source.
PSCOUT22: Output 2 of PSC 2.
Table 11-6. Port C Pins Alternate Functions
Port Pin Alternate Function
PC7 D2A : DAC output
PC6
ADC10 (Analog Input Channel 10)
ACMP1 (Analog Comparator 1 Positive Input )
PC5
ADC9 (Analog Input Channel 9)
AMP1+ (Analog Differential Amplifier 1 Input Channel )
PC4
ADC8 (Analog Input Channel 8)
AMP1- (Analog Differential Amplifier 1 Input Channel )
PC3
T1 (Timer 1 clock input)
PSCOUT23 output
PC2
T0 (Timer 0 clock input)
PSCOUT22 output
PC1
PSCIN1 (PSC 1 Digital Input)
OC1B (Timer 1 Output Compare B)
PC0
PSCOUT10 output (see note 4)
INT3