Rainbow-electronics ATmega64L Manuale Utente Scaricare il pdf (Pagina 61)

100

101

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

DIEOV1100

DI INT1 INPUT INT0 INPUT – RXD

AIO ––––

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 297 298

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