Intel 925 Data Sheet - Page 143
SLOTSTS-Slot Status D1:F0, PCI Device, Address Offset, Default Value, 0X00h, Access, RO, R/W/C
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Host-PCI Express* Graphics Bridge Registers (D1:F0) R 8.1.41 SLOTSTS-Slot Status (D1:F0) PCI Device: Address Offset: Default Value: Access: Size: 1 BAh 0X00h RO, R/W/C 16 bits PCI Express slot-related registers allow for the support of Hot-Plug. Bit Access & Default Description 15:7 Reserved 6 RO Presence Detect State: This bit indicates the presence of a card in the slot. Xb 0 = Slot Empty 1 = Card Present in slot. 5 Reserved 4 R/WC Command Completed: 0b 1 = Hot plug controller completed an issued command. 3 R/WC Presence Detect Changed: 0b 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 Attention Button Pressed: 0b 1 = Attention Button is pressed. Intel® 82925X/82925XE MCH Datasheet 143