Datasheet
enabled as a master, the data direction of this pin is controlled by DDB7. When the pin is
forced to be an input, the pull-up can still be controlled by the
– PORTB7 bit.
– PCINT7, Pin Change Interrupt 7.
• ADC7/PSCOUT1B/PCINT6 – Bit 6
– ADC7, Analog to Digital Converter, input channel 7.
– PSCOUT1B, Output 1B of PSC.
– PCINT6, Pin Change Interrupt 6.
• ADC6/INT2/ACMPN1/AMP2-/PCINT5 – Bit 5
– ADC6, Analog to Digital Converter, input channel 6.
– INT2, External Interrupt source 2. This pin can serve as an External Interrupt source to the
MCU.
– ACMPN1, Analog Comparator 1 Negative 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 Analog Comparator.
– PCINT5, Pin Change Interrupt 5.
• APM0+/PCINT4 – Bit 4
– AMP0+, Analog Differential Amplifier 0 Positive Input Channel.
– PCINT4, Pin Change Interrupt 4.
• AMP0-/PCINT3 – Bit 3
– AMP0-, Analog Differential Amplifier 0 Negative Input Channel. 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 Analog Amplifier.
– PCINT3, Pin Change Interrupt 3.
• ADC5/INT1/ACMPN0/PCINT2 – Bit 2
– ADC5, Analog to Digital Converter, input channel 5.
– INT1, External Interrupt source 1. This pin can serve as an external interrupt source to the
MCU.
– ACMPN0, Analog Comparator 0 Negative 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 Analog Comparator.
– PCINT2, Pin Change Interrupt 2.
• PCINT1/MOSI/PSCOUT2B – Bit 1
– MOSI: SPI Master Data output, Slave Data input for SPI channel. When the SPI is enabled as
a slave, this pin is configured as an input regardless of the setting of DDB1 When the SPI is
enabled as a master, the data direction of this pin is controlled by DDB1. When the pin is
forced to be an input, the pull-up can still be controlled by the
– PORTB1 and PUD bits.
– PSCOUT2B, Output 2B of PSC.
– PCINT1, Pin Change Interrupt 1.
• PCINT0/MISO/PSCOUT2A – Bit 0
– MISO, Master Data input, Slave Data output pin for SPI channel. When the SPI is enabled as
a master, this pin is configured as an input regardless of the setting of DDB0. When the SPI is
enabled as a slave, the data direction of this pin is controlled by DDB0. When the pin is forced
to be an input, the pull-up can still be controlled by the
– PORTB0 and PUD bits.
Atmel ATmega16M1/32M1/64M1 [DATASHEET]
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