Rainbow Electronics Atmega169L - Manual (Page 63)

63
ATmega169V/L
2514A–AVR–08/02
Alternate Functions of Port D The Port D pins with alternate functions are shown in Table 35.
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.
• ICP/SEG22 – Port D, Bit 0
ICP – In pu t C aptu re pi n1 : T he PD0 p in ca n a ct a s an In put Ca pture pi n for
Timer/Counter1.
SEG22, LCD front plane 22
Table 35. Port D Pins Alternate Functions
Port Pin Alternate Function
PD7 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 ICP/ SEG22 (Timer/Counter1 Input Capture Trigger or LCD front plane 22)