Rainbow-electronics ATmega128RFA1 Manuel d'utilisateur Page 27

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 524
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 26
27
8266A-MCU Wireless-12/09
ATmega128RFA1
8.7.1 PORTA – Port A Data Register
Bit 7 6 5 4 3 2 1 0
$02 ($22) PORTA7:0 PORTA
Read/Write RW RW RW RW RW RW RW RW
Initial Value 0 0 0 0 0 0 0 0
The PORTA register can be used as a General Purpose I/O Register for storing any
information.
Bit 7:0 – PORTA7:0 - Port A Data Register Value
8.7.2 DDRA – Port A Data Direction Register
Bit 7 6 5 4 3 2 1 0
$01 ($21) DDA7 DDA6 DDA5 DDA4 DDA3 DDA2 DDA1 DDA0 DDRA
Read/Write RW RW RW RW RW RW RW RW
Initial Value 0 0 0 0 0 0 0 0
The DDRA register can be used as a General Purpose I/O Register for storing any
information.
Bit 7:0 – DDA7:0 - Port A Data Direction Register Value
8.7.3 PINA – Port A Input Pins Address
Bit 7 6 5 4 3 2 1 0
$00 ($20) PINA7:0 PINA
Read/Write RW RW RW RW RW RW RW RW
Initial Value 0 0 0 0 0 0 0 0
The PINA register is reserved for interal use and cannot be used as a General Purpose
I/O Register.
Bit 7:0 – PINA7:0 - Port A Input Pins
8.7.4 PORTC – Port C Data Register
Bit 7 6 5 4 3 2 1 0
$08 ($28) PORTC7:0 PORTC
Read/Write RW RW RW RW RW RW RW RW
Initial Value 0 0 0 0 0 0 0 0
The PORTC register can be used as a General Purpose I/O Register for storing any
information.
Bit 7:0 – PORTC7:0 - Port C Data Register Value
Vue de la page 26
1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 523 524

Commentaires sur ces manuels

Pas de commentaire