Host-PCI Express* Graphics Bridge Registers (D1:F0)
R
Intel
®
82925X/82925XE MCH Datasheet 143
8.1.41 SLOTSTS—Slot Status (D1:F0)
PCI Device: 1
Address Offset: BAh
Default Value: 0X00h
Access: RO, R/W/C
Size: 16 bits
PCI Express slot-related registers allow for the support of Hot-Plug.
Bit Access &
Default
Description
15:7 Reserved
6 RO
Xb
Presence Detect State: This bit indicates the presence of a card in the slot.
0 = Slot Empty
1 = Card Present in slot.
5 Reserved
4 R/WC
0b
Command Completed:
1 = Hot plug controller completed an issued command.
3 R/WC
0b
Presence Detect Changed:
1 = Presence Detect change is detected. This corresponds to an edge on the
signal that corresponds to bit 6 of this register (Presence Detect State).
2:1 Reserved
0 R/WC
0b
Attention Button Pressed:
1 = Attention Button is pressed.