Datasheet

73
ATmega329/3210/649/6410
2552I–AVR–04/07
Alternate Functions of Port D The Port D pins with alternate functions are shown in Table 36.
The alternate pin configuration is as follows:
• SEG – Port D, Bit 7:2
SEG, LCD front plane 19/15-24/20.
•INT0
/SEG – Port D, Bit 1
INT0, External Interrupt Source 0. The PD1 pin can serve as an external interrupt
source to the MCU.
SEG, LCD front plane 25/21.
• ICP1/SEG – Port D, Bit 0
ICP1 – Input Capture pin1: The PD0 pin can act as an Input Capture pin for
Timer/Counter1.
SEG, LCD front plane 26/22
Table 37 and Table 38 relates the alternate functions of Port D to the overriding signals
shown in Figure 27 on page 65.
Table 36. Port D Pins Alternate Functions (SEG refers to 100-pin/64-pin pinout)
Port Pin Alternate Function
PD7 SEG (LCD front plane 19/15)
PD6 SEG (LCD front plane 20/16)
PD5 SEG (LCD front plane 21/17)
PD4 SEG (LCD front plane 22/18)
PD3 SEG (LCD front plane 23/19)
PD2 SEG (LCD front plane 24/20)
PD1 INT0
/SEG (External Interrupt0 Input or LCD front plane 25/21)
PD0 ICP1/SEG (Timer/Counter1 Input Capture pin or LCD front plane 26/22)