Table 9-10 and Table 9-11 relates the alternate functions of Port D to the overriding signals shown in Figure 9-5 on page 56.
Table 9-10. Overriding Signals for Alternate Functions PD7..PD4
PD7/
PD6/ADC3/
ACMPN2/INT0/
PCINT22
PD4/ADC1/RXD/
RXLIN/ICP1A/
ACMP0/
PCINT23
PD5/ADC2/
Signal Name
ACMP2/PCINT21
SCK_A/PCINT20
RXEN + SPE •
MSTR SPIPS
PD4 PUD
PUOE
0
0
0
PUOV
DDOE
0
0
0
0
0
0
RXEN + SPE
MSTR SPIPS
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
0
0
0
0
0
0
0
SPE MSTR SPIPS
0
0
ADC3D + In0en
In0en
0
ADC2D
0
–
ACMP0D
ADC1D
0
0
–
INT0
ICP1A
ADC3
ACMPM
ADC2
ACOMP2
AIO
ACOMP0
ADC1
Table 9-11. Overriding Signals for Alternate Functions in PD3..PD0
PD3/TXD/TXLIN/
OC0A/SS/MOSI_A/
PCINT19
PD2/PSCIN2/
OC1A/MISO_A/
PCINT18
PD1/PSCIN0/
CLKO/
PD0/PSCOUT0A/
XCK/PCINT16
Signal Name
PCINT17
TXEN + SPE
MSTR SPIPS
SPE
MSTR SPIPS
PUOE
–
–
0
0
TXEN SPE MSTR
SPIPS PD3 PUD
PUOV
PD0 PUD
TXEN + SPE
MSTR SPIPS
PSCen00 + SPE
MSTR SPIPS
DDOE
DDOV
PVOE
–
0
–
0
0
0
TXEN
PSCen00
TXEN + OC0en + SPE
MSTR SPIPS
PSCen00 + UMSEL
TXEN TXD + TXEN
(OC0en OC0 + OC0en
SPIPS MOSI)
PVOV
–
0
–
DIEOE
DIEOV
0
0
0
0
0
0
0
0
SS
MOSI_Ain
DI
AIO
66
ATmega16/32/64/M1/C1 [DATASHEET]
7647O–AVR–01/15
MICROCHIP [ MICROCHIP ]
