Datasheet

ATmega164A/PA/324A/PA/644A/PA/1284/P
 2018 Microchip Technology Inc. Data Sheet Complete DS40002070A-page 88
14.3.2 Alternate Functions of Port B
The Port B pins with alternate functions are shown in Table 14-6.
Table 14-5. Overriding Signals for Alternate Functions in PA3:PA0
Signal
Name
PA3/ADC3/
PCINT3
PA2/ADC2/
PCINT2
PA1/ADC1/
PCINT1
PA0/ADC0/
PCINT0
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
PCINT3 • PCIE0 +
ADC3D
PCINT2 • PCIE0 +
ADC2D
PCINT1 • PCIE0 +
ADC1D
PCINT0 • PCIE0 +
ADC0D
DIEOV PCINT3 • PCIE0 PCINT2 • PCIE0 PCINT1 • PCIE0 PCINT0 • PCIE0
DI PCINT3 INPUT PCINT2 INPUT PCINT1 INPUT PCINT0 INPUT
AIO ADC3 INPUT ADC2 INPUT ADC1 INPUT ADC0 INPUT
Table 14-6. Port B pins alternate functions
Port Pin Alternate Functions
PB7
SCK (SPI Bus Master clock input)
OC3B (Timer/Counter 3 Output Compare Match B Output)
PCINT15 (Pin Change Interrupt 15)
PB6
MISO (SPI Bus Master Input/Slave Output)
OC3A (Timer/Counter 3 Output Compare Match A Output)
PCINT14 (Pin Change Interrupt 14)
PB5
MOSI (SPI Bus Master Output/Slave Input)
ICP3 (Timer/Counter3 Input Capture Trigger)
PCINT13 (Pin Change Interrupt 13)
PB4
SS (SPI Slave Select input)
OC0B (Timer/Counter 0 Output Compare Match B Output)
PCINT12 (Pin Change Interrupt 12)
PB3
AIN1 (Analog Comparator Negative Input)
OC0A (Timer/Counter 0 Output Compare Match A Output)
PCINT11 (Pin Change Interrupt 11)
PB2
AIN0 (Analog Comparator Positive Input)
INT2 (External Interrupt 2 Input)
PCINT10 (Pin Change Interrupt 10)
PB1
T1 (Timer/Counter 1 External Counter Input)
CLKO (Divided System Clock Output)
PCINT9 (Pin Change Interrupt 9)
PB0
T0 (Timer/Counter 0 External Counter Input)
XCK0 (USART0 External Clock Input/Output)
PCINT8 (Pin Change Interrupt 8)