Hot-Plug Interrupt Input And Clear - Intel 460GX Software Developer’s Manual

WXB Hot-Plug
for unpopulated slots and slots with open switches. The set of usable LED Control bits is
determined by the strapping values on the P(A,B)HSIL, P(A,B)HSOL, and P(A,B)HSOC inputs.
Unsupported slots in a system do not have writeable LED Control bits. LEDs are not affected by
changes to these register bits until a SOGO is initiated following the changes.
Bits
31:30
29
28
27
26
25
24
23:22
21
20
19
18
17
16
15:14
13
12
11
10
9
8
7:6
5
4
3
2
1
0
8.2.5

Hot-Plug Interrupt Input and Clear

Address Offset:
Default Value:
These bits indicate the state of the interrupt capable inputs when no interrupt is pending. When a
hot-plug general interrupt changes state (either high to low or low to high), and the bit is not
masked in the Interrupt Mask register, an interrupt is generated and the state of that input is latched
8-14
Description
reserved (0)
Slot F Amber LED, msb
Slot E Amber LED, msb
Slot D Amber LED, msb
Slot C Amber LED, msb
Slot B Amber LED, msb
Slot A Amber LED, msb
reserved (0)
Slot F Amber LED, lsb
Slot E Amber LED, lsb
Slot D Amber LED, lsb
Slot C Amber LED, lsb
Slot B Amber LED, lsb
Slot A Amber LED, lsb
reserved (0)
Slot F Green LED, msb
Slot E Green LED, msb
Slot D Green LED, msb
Slot C Green LED, msb
Slot B Green LED, msb
Slot A Green LED, msb
reserved(0)
Slot F Green LED, lsb
Slot E Green LED, lsb
Slot D Green LED, lsb
Slot C Green LED, lsb
Slot B Green LED, lsb
Slot A Green LED, lsb
08h
Varies
Size: 32 bits
Attribute: Read/Write Clear (Pwr Gd Rst Only)
Intel® 460GX Chipset Software Developer's Manual