Intel 6 SERIES CHIPSET - DATASHEET 01-2011 Datasheet page 778

19.1.31 SLCAP—Slot Capabilities Register
(PCI Express*—D28:F0/F1/F2/F3/F4/F5/F6/F7)
Address Offset: 54h
Default Value:
Bit
Physical Slot Number (PSN) — R/WO. This is a value that is unique to the slot
31:19
number. BIOS sets this field and it remains set until a platform reset.
18:17 Reserved.
Slot Power Limit Scale (SLS) — R/WO. Specifies the scale used for the slot power
16:15
limit value. BIOS sets this field and it remains set until a platform reset.
Slot Power Limit Value (SLV) — R/WO. Specifies the upper limit (in conjunction with
SLS value), on the upper limit on power supplied by the slot. The two values together
14:7
indicate the amount of power in watts allowed for the slot. BIOS sets this field and it
remains set until a platform reset.
Hot Plug Capable (HPC) — R/WO.
6
1b = Indicates that Hot-Plug is supported.
Hot Plug Surprise (HPS) — R/WO.
5
1b = Indicates the device may be removed from the slot without prior notification.
Power Indicator Present (PIP) — RO.
4
0b = Indicates that a power indicator LED is not present for this slot.
Attention Indicator Present (AIP) — RO.
3
0b = Indicates that an attention indicator LED is not present for this slot.
MRL Sensor Present (MSP) — RO.
2
0b = Indicates that an MRL sensor is not present.
Power Controller Present (PCP) — RO.
1
0b = Indicates that a power controller is not implemented for this slot.
Attention Button Present (ABP) — RO.
0
0b = Indicates that an attention button is not implemented for this slot.
778
57h
–
00040060h
PCI Express* Configuration Registers
Attribute: R/WO, RO
Size: 32 bits
Description
Datasheet