Echelon I/O Model Reference for Smart Transceivers and Neu Manuel d'utilisateur Page 79

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 209
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 78
I/O Model Reference 69
Table 26. Slave Writes Buffer to Master: R/W~=1
Step Master Slave Comment
1 (Owns Token)
2 Write XFER Slave has data to write (XFER=0x01)
3 Read XFER
4 Write (length) Length=number of bytes of data
5 Read (length)
6 Write (data_0) Salve begins data transfer to master
7 Read (data_0)
8 Repeat steps 6 and 7
length
times
9 Write (data_n) Last byte of data to be transferred
10 Read (data_n)
11 Write EOM End of data transfer (EOM=0x00)
12 Process EOM Exchange token
13 (Owns Token)
Table 27. Master Passes Token to Slave
Step Master Slave Comment
1 (Owns Token)
2 Write NULL Master has no data to send to slave
3 Read NULL NULL=0x00
4 Write EOM End of data transfer (EOM=0x00)
5 Process EOM Exchange token
6 (Owns Token)
Vue de la page 78
1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 208 209

Commentaires sur ces manuels

Pas de commentaire