Intel Xeon Wolfdale E3210 P4X-UPE3210-316-6M1333 Fiche De Données
Codes de produits
P4X-UPE3210-316-6M1333
Datasheet
179
Host-Primary PCI Express* Bridge Registers (D1:F0)
6.41
SLOTCAP—Slot Capabilities
B/D/F/Type:
0/1/0/PCI
Address Offset: B4–B7h
Default Value:
00040000h
Access:
RWO, RO
Size:
32 bits
PCI Express Slot related registers.
9:4
RO
00h
Negotiated Link Width (NLW): Indicates negotiated link width. This field is
valid only when the link is in the L0, L0s, or L1 states (after link width
negotiation is successfully completed).
01h = x1
10h = x16
All other encodings are reserved.
valid only when the link is in the L0, L0s, or L1 states (after link width
negotiation is successfully completed).
01h = x1
10h = x16
All other encodings are reserved.
3:0
RO
0h
Current Link Speed (CLS): This field indicates the negotiated Link speed of the
given PCI Express Link.
0001b = 2.5 GT/s PCI Express Link
All other encodings are reserved. The value in this field is undefined when the
Link is not up.
given PCI Express Link.
0001b = 2.5 GT/s PCI Express Link
All other encodings are reserved. The value in this field is undefined when the
Link is not up.
Bit
Access
Default
Value
Description
Bit
Access
Default
Value
Description
31:19
RWO
0000h
Physical Slot Number (PSN): Indicates the physical slot number attached to
this Port.
this Port.
18
RO
1b
Reserved
17
RO
0b
Electromechanical Interlock Present (EIP): When set to 1b, this bit
indicates that an Electromechanical Interlock is implemented on the chassis for
this slot.
indicates that an Electromechanical Interlock is implemented on the chassis for
this slot.
16:15
RWO
00b
Slot Power Limit Scale (SPLS): Specifies the scale used for the Slot Power
Limit Value.
00 = 1.0x
01 = 0.1x
10 = 0.01x
11 = 0.001x
If this field is written, the link sends a Set_Slot_Power_Limit message.
Limit Value.
00 = 1.0x
01 = 0.1x
10 = 0.01x
11 = 0.001x
If this field is written, the link sends a Set_Slot_Power_Limit message.
14:7
RWO
00h
Slot Power Limit Value (SPLV): In combination with the Slot Power Limit
Scale value, specifies the upper limit on power supplied by slot. Power limit (in
Watts) is calculated by multiplying the value in this field by the value in the Slot
Power Limit Scale field.
If this field is written, the link sends a Set_Slot_Power_Limit message.
Scale value, specifies the upper limit on power supplied by slot. Power limit (in
Watts) is calculated by multiplying the value in this field by the value in the Slot
Power Limit Scale field.
If this field is written, the link sends a Set_Slot_Power_Limit message.
6:5
RO
00b
Reserved
4
RO
0b
Power Indicator Present (PIP): When set to 1b, this bit indicates that a
Power Indicator is electrically controlled by the chassis for this slot.
Power Indicator is electrically controlled by the chassis for this slot.
3
RO
0b
Attention Indicator Present (AIP): When set to 1b, this bit indicates that an
Attention Indicator is electrically controlled by the chassis.
Attention Indicator is electrically controlled by the chassis.