Hot-Plug Switch Interrupt Redirect Enable; Slot Power Control; Extended Hot-Plug Miscellaneous - Intel 460GX Software Developer’s Manual

WXB Hot-Plug
8.2.12

Hot-Plug Switch Interrupt Redirect Enable

Address Offset:
Default Value:
This register allows the slot switch change interrupts to be redirected to the SERR# instead of the
INTA#.
Bits
7:6
5
4
3
2
1
0
8.2.13

Slot Power Control

Address Offset:
Default Value:
This register is used to power a slot without connecting it to the bus. SOGO must be set to cause
the output sequence. Slots that are connected to the bus cannot be powered down through this
register (the Slot Enable register is used instead). The set of usable Slot Power 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 Slot Power Control bits.
Bits
7:6
5
4
3
2
1
0
8.2.14

Extended Hot-Plug Miscellaneous

Address Offset:
Default Value:
Bits
15:0
8-18
2Ch
00h
Description
reserved (0)
Slot F INTR Redirect Enable
Slot E INTR Redirect Enable
Slot D INTR Redirect Enable
Slot C INTR Redirect Enable
Slot B INTR Redirect Enable
Slot A INTR Redirect Enable
2Dh
Sampled at PWRGD
Description
reserved (0)
Enable Power to Slot F. When 1, slot F is powered up. When 0, slot F is powered down
Enable Power to Slot E. When 1, slot E is powered up. When 0, slot E is powered down
Enable Power to Slot D. When 1, slot D is powered up. When 0, slot D is powered down
Enable Power to Slot C. When 1, slot C is powered up. When 0, slot C is powered down
Enable Power to Slot B. When 1, slot B is powered up. When 0, slot B is powered down
Enable Power to Slot A. When 1, slot A is powered up. When 0, slot A is powered down
32h
0000h
Description
reserved (0)
Size:
Attribute:
Size: 8 bits
Attribute: Read/Write (Pwr Good Rst Only)
Size:
Attribute:
Intel® 460GX Chipset Software Developer's Manual
8 bits
Read/Write
16 bits
Partial Read/Write