Intel® 945G/945GZ/945GC/ 945P/945PL Express Chipset Family ...

Host-PCI Express* Bridge Registers (D1:F0) (Intel® 82945G/82945GC/82945P/82945PL Only)
5.1.40 SLOTCTL—Slot Control (D1:F0)
PCI Device: 1
Address Offset: B8h
Default Value: 01C0h
Access: R/W
Size: 16 bits
PCI Express slot related registers allow for the support of hot-plug.
Bit Access &
Default
15:10 Reserved
9:8 R/W
01b
7:6 R/W
11 b
5 R/W
0b
4 R/W
0b
3 R/W
0b
Description
Power Indicator Control: Reads to this field return the current state of the
power indicator. Writes to this field 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 field return the current state of the
attention indicator. Writes to this field 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 a hot-plug interrupt when the hot-plug controller
completes a command.
Presence Detect Changed Enable:
0 = Disable.
2:1 Reserved
0 R/W
0b
1 = Enables the generation of a hot-plug interrupt or wake message on a
presence detect changed event.
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 ® 82945G/82945GZ/82945GC GMCH and 82945P/82945PL MCH Datasheet