atmega3250v-8auatmega325v-8ai ATMEL Corporation, atmega3250v-8auatmega325v-8ai Datasheet - Page 70

• Manufacturer Part Number: atmega3250v-8auatmega325v-8ai
• Description: Atmega3250 8-bit Microcontroller With In-system Programmable Flash
• Manufacturer: ATMEL Corporation

14.3.2
70
ATmega325/3250/645/6450
Alternate Functions of Port D
The Port D pins with alternate functions are shown in
Table 14-6.
The alternate pin configuration is as follows:
• INT0 – Port D, Bit 1
INT0, External Interrupt Source 0. The PD1 pin can serve as an external interrupt source to the
MCU.
• ICP1 – Port D, Bit 0
ICP1 – Input Capture pin1: The PD0 pin can act as an Input Capture pin for Timer/Counter1.
Table 14-7
5 on page
Table 14-7.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
65.
relates the alternate functions of Port D to the overriding signals shown in
Port D Pins Alternate Functions
Overriding Signals for Alternate Functions in PD3:PD0
Alternate Function
-
-
-
-
-
-
INT0 (External Interrupt0 Input)
ICP1 (Timer/Counter1 Input Capture pin)
PD3
0
0
0
0
0
0
–
0
0
–
–
PD2
0
0
0
0
0
0
–
0
0
–
–
PD1/INT0
0
0
0
0
0
0
–
INT0 ENABLE
INT0 ENABLE
INT0 INPUT
–
Table
14-6.
0
0
0
0
0
0
–
0
0
–
PD0/ICP1
ICP1 INPUT
2570L–AVR–08/07
Figure 14-