Rainbow Electronics ATmega64L - Manual (Page 61)

61
ATmega16(L)
2466B–09/01
USART forces this pin to be an input, the pull-up can still be controlled by the PORTD0
bit.
Table 32 and Table 33 relate the alternate functions of Port D to the overriding signals
shown in Figure 26 on page 52.
Table 32. Overriding Signals for Alternate Functions PD7..PD4
Signal Name PD7/OC2 PD6/ICP PD5/OC1A PD4/OC1B
PUOE 0 0 0 0
PUOV 0 0 0 0
DDOE 0 0 0 0
DDOV 0 0 0 0
PVOE OC2 ENABLE 0 OC1A ENABLE OC1B ENABLE
PVOV OC2 0 OC1A OC1B
DIEOE 0 0 0 0
DIEOV 0 0 0 0
DI – ICP INPUT – –
AIO – – – –
Table 33. Overriding Signals for Alternate Functions in PD3..PD0
Signal Name PD3/INT1 PD2/INT0 PD1/TXD PD0/RXD
PUOE 0 0 TXEN RXEN
PUOV 0 0 0 PORTD0 • PUD
DDOE 0 0 TXEN RXEN
DDOV 0 0 1 0
PVOE 0 0 TXEN 0
PVOV 0 0 TXD 0
DIEOE INT1 ENABLE INT0 ENABLE 0 0
DIEOV 1 1 0 0
DI INT1 INPUT INT0 INPUT – RXD
AIO – – – –