ATMEGA6490V_14 Datasheet, PDF (73/392 Pages) ATMEL Corporation – High Endurance Non-volatile Memory Segments

ATmega329/3290/649/6490
13.3.4
Alternate Functions of Port D
The Port D pins with alternate functions are shown in Table 13-12.
Table 13-12. 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)
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 13-13 and Table 13-14 relates the alternate functions of Port D to the overriding signals
shown in Figure 13-5 on page 65.
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