Freescale-semiconductor MPC5200B Manuale Utente Pagina 364

  • Scaricare
  • Aggiungi ai miei manuali
  • Stampa
  • Pagina
    / 762
  • Indice
  • SEGNALIBRI
  • Valutato. / 5. Basato su recensioni clienti
Vedere la pagina 363
Application Information
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor 10-67
10.6.3 XL bus Arbitration Priority
When the XL Bus Arbiter Master Priority Register (Section 16.2.11, Arbiter Master Priority Register (R/W)—MBAR + 0x1F68) is set
to any configuration except all-master fair-share (all masters have the same priority), live lock can occur on the shared PCI bus and the XL
Bus, which results in system-wide live lock.
The only resolution that guarantees that this live lock scenario will not occur is to set all the XL Bus Arbiter master priorities to be equal.
Additionally, it is usually preferable that all master priorities are not set to zero, as this can generate an interrupt by the XL Bus Arbiter, if
enabled.
Vedere la pagina 363
1 2 ... 359 360 361 362 363 364 365 366 367 368 369 ... 761 762

Commenti su questo manuale

Nessun commento