Rainbow-electronics ATmega128L Manual do Utilizador descarregar pdf (Página 81)

100

101

ATmega128(L)

2467B–09/01

I/O Ports

Port A Data Register – PORTA

Port A Data Direction Register

– DDRA

Port A Input Pins Address –

PINA

Port B Data Register – PORTB

Port B Data Direction Register

– DDRB

Table 47. Overriding Signals for Alternate Functions in PG0

Signal Name PG0/WR

PUOE SRE

PUOV 0

DDOE SRE

DDOV 1

PVOE SRE

PVOV WR

DIEOE 0

DIEOV 0

DI -

AIO -

Bit 76543210

PORTA7 PORTA6 PORTA5 PORTA4 PORTA3 PORTA2 PORTA1 PORTA0 PORTA

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial value 0 0 0 0 0 0 0 0

Bit 76543210

DDA7 DDA6 DDA5 DDA4 DDA3 DDA2 DDA1 DDA0 DDRA

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial value 0 0 0 0 0 0 0 0

Bit 76543210

PINA7 PINA6 PINA5 PINA4 PINA3 PINA2 PINA1 PINA0 PINA

Read/WriteRRRRRRRR

Initial value N/A N/A N/A N/A N/A N/A N/A N/A

Bit 76543210

PORTB7 PORTB6 PORTB5 PORTB4 PORTB3 PORTB2 PORTB1 PORTB0 PORTB

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial value 0 0 0 0 0 0 0 0

Bit 76543210

DDB7 DDB6 DDB5 DDB4 DDB3 DDB2 DDB1 DDB0 DDRB

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial value 0 0 0 0 0 0 0 0

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 330 331

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