Intel Xeon Wolfdale E3210 P4X-UPE3210-316-6M1333 Scheda Tecnica
Codici prodotto
P4X-UPE3210-316-6M1333
Host-Primary PCI Express* Bridge Registers (D1:F0)
154
Datasheet
6.7
CL1—Cache Line Size
B/D/F/Type:
0/1/0/PCI
Address Offset: Ch
Default Value:
00h
Access:
RW
Size:
8 bits
6.8
HDR1—Header Type
B/D/F/Type:
0/1/0/PCI
Address Offset: Eh
Default Value:
01h
Access:
RO
Size:
8 bits
This register identifies the header layout of the configuration space. No physical
register exists at this location.
6.9
PBUSN1—Primary Bus Number
B/D/F/Type:
0/1/0/PCI
Address Offset: 18h
Default Value:
00h
Access:
RO
Size:
8 bits
This register identifies that this "virtual" Host-PCI Express bridge is connected to PCI
bus 0.
Bit
Access
Default
Value
Description
7:0
RW
00h
Cache Line Size (Scratch pad): Implemented by PCI Express devices as a
read-write field for legacy compatibility purposes but has no impact on any PCI
Express device functionality.
read-write field for legacy compatibility purposes but has no impact on any PCI
Express device functionality.
Bit
Access
Default
Value
Description
7:0
RO
01h
Header Type Register (HDR): Returns 01h to indicate that this is a single
function device with bridge header layout.
function device with bridge header layout.
Bit
Access
Default
Value
Description
7:0
RO
00h
Primary Bus Number (BUSN): Configuration software typically programs this
field with the number of the bus on the primary side of the bridge. Since device
1 is an internal device and its primary bus is always 0, these bits are read only
and are hardwired to 0.
field with the number of the bus on the primary side of the bridge. Since device
1 is an internal device and its primary bus is always 0, these bits are read only
and are hardwired to 0.