ATmega169P
12.3.4
Alternate Functions of Port D
The Port D pins with alternate functions are shown in Table 12-12.
Table 12-12. Port D Pins Alternate Functions
Port Pin
PD7
Alternate Function
SEG15 (LCD front plane 15)
PD6
SEG16 (LCD front plane 16)
PD5
SEG17 (LCD front plane 17)
PD4
SEG18 (LCD front plane 18)
PD3
SEG19 (LCD front plane 19)
PD2
SEG20 (LCD front plane 20)
PD1
INT0/SEG21 (External Interrupt0 Input or LCD front plane 21)
PD0
ICP1/SEG22 (Timer/Counter1 Input Capture pin or LCD front plane 22)
The alternate pin configuration is as follows:
• SEG15 - SEG20 – Port D, Bit 7:2
SEG15-SEG20, LCD front plane 15-20.
• INT0/SEG21 – Port D, Bit 1
INT0, External Interrupt Source 0. The PD1 pin can serve as an external interrupt source to the
MCU.
SEG21, LCD front plane 21.
• ICP1/SEG22 – Port D, Bit 0
ICP1 – Input Capture pin1: The PD0 pin can act as an Input Capture pin for Timer/Counter1.
SEG22, LCD front plane 22
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8018A–AVR–03/06
ATMEL [ ATMEL ]
