EP80579 Datasheet, PDF (277/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
10.1.9.1 Device 2 Memory and Prefetchable Memory
Table 10-11. Device 2 Memory and Prefetchable Memory
From
To
M2
MBASE2
MLIMIT2
PM2
PMBASE2/PMBASU2
PMLIMIT2/PMLMTU2
Plug-and-play software configures the PEA a memory window in order to provide
enough memory space for the devices behind this virtual PCI-to-PCI bridge. Accesses
whose addresses fall within these windows are decoded and forwarded to PEA0 for
completion. Note that neither region should overlap with any other fixed or relocate-
able area of memory. Also note that PCICMD2 refers to PCICMD for device 2.
10.1.9.2 Device 3 Memory and Prefetchable Memory
Table 10-12. Device 3 Memory and Prefetchable Memory
From
To
M3
MBASE3
MLIMIT3
PM3
PMBASE3/PMBASU3
PMLIMIT3/PMLMTU3
Plug-and-play software configures the PEA1 memory window in order to provide
enough memory space for the devices behind this virtual PCI-to-PCI bridge. Accesses
whose addresses fall within this window are decoded and forwarded to PEA1 for
completion. Note that neither region should overlap with any other fixed or relocate-
able area of memory. Also note that PCICMD3 refers to PCICMD for device 3.
Note:
If PCI Express Port A0 is configured to operate in x8 mode, all functional space for PEA1
disappears; effectively collapsing M3/PM3 to match the limit addresses of M2/PM2.
10.1.9.3 Device 4 Memory and Prefetchable Memory
Table 10-13. Device 4 Memory and Prefetchable Memory
From
To
M4
MBASE4
MLIMIT4
PM4
PMBASE4/PMBASU4
PMLIMIT4/PMLMTU4
Plug-and-play software configures the PCI memory window in order to provide enough
memory space for the devices behind this virtual PCI-to-PCI bridge. Accesses whose
addresses fall within this window are decoded and forwarded to PCI for completion.
Note that neither region should overlap with any other fixed or relocate-able area of
memory. Also note that PCICMD4 refers to PCICMD for device 4.
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
277