PCI Express* (D28:F0, F1)
11.2.29 SLCAP—Slot Capabilities Register
Address Offset:
Default Value:
54h–57h
00000060h
Attribute:
Size:
R/WO, RO
32 bits
Default
Bit
and
Description
Access
0000h
R/WO
Physical Slot Number (PSN): This is a value that is unique to the slot
number. BIOS sets this field and it remains set until a platform reset.
31:19
18:17
00b
RO
Reserved
Slot Power Limit Scale (SLS): Specifies the scale used for the slot
power limit value. BIOS sets this field and it remains set until a platform
reset.
00b
R/WO
16:15
14:7
Slot Power Limit Value (SLV): These bits, in conjunction with SLS,
specify the upper limit on power supplied by the slot. The two values
Together, SLV and SLS indicate the amount of power in watts allowed for
the slot. BIOS sets this field and it remains set until a platform reset.
00h
R/WO
1
RO
Hot Plug Capable (HPC)
1 = Indicates that hot-plug is supported.
6
5
Hot Plug Surprise (HPS)
1 = Indicates the device may be removed from the slot without prior
notification.
1
RO
Power Indicator Present (PIP)
0
RO
4
3
2
1
0
0 = Indicates that a power indicator LED is not present for this slot.
Attention Indicator Present (AIP)
0
RO
0 = Indicates that an attention indicator LED is not present for this slot.
MRL Sensor Present (MSP)
0
RO
0 = Indicates that an MRL sensor is not supported
Power Controller Present (PCP)
0
RO
0 = Indicates that a power controller is not supported for this slot.
Attention Button Present (ABP)
0
RO
0 = Indicates that an attention button is not supported for this slot.
Datasheet
193
INTEL [ INTEL ]
