Intel 925 Data Sheet - Page 142
SLOTCTL-Slot Control D1:F0, PCI Device, Address Offset, Default Value, 01C0h, Access
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Host-PCI Express* Graphics Bridge Registers (D1:F0) R 8.1.40 SLOTCTL-Slot Control (D1:F0) PCI Device: Address Offset: Default Value: Access: Size: 1 B8h 01C0h R/W 16 bits PCI Express slot related registers allow for the support of Hot-Plug. Bit 15:10 9:8 7:6 5 4 3 2:1 0 Access & Default R/W 01b R/W 11b R/W 0b R/W 0b R/W 0b R/W 0b Description Reserved Power Indicator Control: Reads to this register return the current state of the Power Indicator. Writes to this register set the Power Indicator and cause the Port to send the appropriate POWER_INDICATOR_* messages. 00 = Reserved 01 = On 10 = Blink 11 = Off Attention Indicator Control: Reads to this register return the current state of the Attention Indicator. Writes to this register set the Attention Indicator and cause the Port to send the appropriate ATTENTION_INDICATOR_* messages. 00 = Reserved 01 = On 10 = Blink 11 = Off Hot plug Interrupt Enable: 0 = Disable. 1 = Enables generation of hot plug interrupt on enabled hot plug events. Command Completed Interrupt Enable: 0 = Disable. 1 = Enables the generation of hot plug interrupt when the Hot plug controller completes a command. Presence Detect Changed Enable: 0 = Disable. 1 = Enables the generation of hot plug interrupt or wake message on a presence detect changed event. Reserved Attention Button Pressed Enable: 0 = Disable. 1 = Enables the generation of hot plug interrupt or wake message on an attention button pressed event. 142 Intel® 82925X/82925XE MCH Datasheet