Datasheet

62
ATmega8(L)
2486M–AVR–12/03
Table 29 and Table 30 relate the alternate functions of Port D to the overriding signals
shown in Figure 25 on page 54.
Table 29. Overriding Signals for Alternate Functions PD7..PD4
Signal Name PD7/AIN1 PD6/AIN0 PD5/T1 PD4/XCK/T0
PUOE 0 0 0 0
PUO 0 0 0 0
OOE 0 0 0 0
OO 0 0 0 0
PVOE 0 0 0 UMSEL
PVO 0 0 0 XCK OUTPUT
DIEOE 0 0 0 0
DIEO 0 0 0 0
DI – – T1 INPUT XCK INPUT / T0 INPUT
AIO AIN1 INPUT AIN0 INPUT – –
Table 30. Overriding Signals for Alternate Functions in PD3..PD0
Signal Name PD3/INT1 PD2/INT0 PD1/TXD PD0/RXD
PUOE 0 0 TXEN RXEN
PUO 0 0 0 PORTD0 • PUD
OOE 0 0 TXEN RXEN
OO 0 0 1 0
PVOE 0 0 TXEN 0
PVO 0 0 TXD 0
DIEOE INT1 ENABLE INT0 ENABLE 0 0
DIEO 1 1 0 0
DI INT1 INPUT INT0 INPUT – RXD
AIO – – – –