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 •
PUOE
–
–
0
0
MSTR • SPIPS
TXEN • SPE • MSTR
• SPIPS • PD3 • PUD
PUOV
PD0 • PUD
TXEN + SPE •
MSTR • SPIPS
PSCen00 + SPE •
MSTR • SPIPS
DDOE
DDOV
–
0
0
0
TXEN
PSCen00
TXEN + OC0en +
SPE •
PVOE
PVOV
–
–
0
0
PSCen00 + UMSEL
MSTR • SPIPS
TXEN • TXD + TXEN
• (OC0en • OC0 +
OC0en • SPIPS •
MOSI)
–
DIEOE
DIEOV
0
0
0
0
0
0
0
0
SS
DI
MOSI_Ain
AIO
9.3.5
Alternate Functions of Port E
The Port E pins with alternate functions are shown in Table 9-12.
Table 9-12. Port E Pins Alternate Functions
Port Pin
Alternate Function
XTAL2 (XTAL Output)
PE2
ADC0 (Analog Input Channel 0)
PCINT26 (Pin Change Interrupt 26)
XTAL1 (XTAL Input)
PE1
PE0
OC0B (Timer 0 Output Compare B)
PCINT25 (Pin Change Interrupt 25)
RESET# (Reset Input)
OCD (On Chip Debug I/O)
PCINT24 (Pin Change Interrupt 24)
Note:
On the engineering samples (Parts marked AT90PWM324), the ACMPN3 alternate function is not
located on PC4. It is located on PE2.
78
ATmega16/32/64/M1/C1
7647F–AVR–04/09
ATMEL [ ATMEL ]
