Altera PCI Compiler Manuale Utente Pagina 203

  • Scaricare
  • Aggiungi ai miei manuali
  • Stampa
  • Pagina
    / 360
  • Indice
  • SEGNALIBRI
  • Valutato. / 5. Basato su recensioni clienti
Vedere la pagina 202
Altera Corporation User Guide Version 11.1 3–129
October 2011
Functional Description
PCI Configuration Write Transaction from the pci_mt64 Local Master
Device to the Internal Configuration Space
Figure 3–47 shows the behavior of the pci_mt64 master performing a
configuration write transaction to internal configuration space. The local
master requests a 32-bit transaction by asserting the lm_req32n signal.
When requesting a configuration write transaction, the pci_mt64
function will automatically perform a single-cycle transaction. The local
master signals are asserted as if the pci_mt64 master is completing a
single-cycle 32-bit memory write transaction, similar to Figure 3–43 in the
Master Mode Operation section. The pci_mt64 function’s internal
configuration space will respond to the transaction without affecting the
local side signals. Figure 3–47 applies to both the pci_mt64 and
pci_mt32 MegaCore functions, excluding the 64-bit extension signals as
noted for pci_mt32.
Vedere la pagina 202
1 2 ... 198 199 200 201 202 203 204 205 206 207 208 ... 359 360

Commenti su questo manuale

Nessun commento