Altera PCI Compiler Manuel d'utilisateur Page 175

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 360
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 174
Altera Corporation User Guide Version 11.1 3–101
October 2011
Functional Description
The local side deasserts lm_rdyn in clock cycle 9. Consequently, on the
following clock cycle (clock cycle 10), the pci_mt64 function suspends
data transfer on the local side by deasserting the lm_dxfrn signal and on
the PCI side by deasserting the irdyn signal.
Figures 3–34 shows the same transaction as in Figure 3–31 with the PCI
bus target inserting a wait state. This figure applies to both pci_mt64
and pci_mt32 MegaCore functions, excluding the 64-bit extension
signals as noted for pci_mt32. The PCI side inserts a wait state by
deasserting trdyn in clock cycle 9. Consequently, on the following clock
cycle (clock cycle 10), the function deasserts the lm_ackn and lm_dxfrn
signal on the local side. Data transfer is suspended on the PCI side in
clock cycle 9 and on the local side in clock cycle 10.
Vue de la page 174
1 2 ... 170 171 172 173 174 175 176 177 178 179 180 ... 359 360

Commentaires sur ces manuels

Pas de commentaire