Intel 460GX WXB Hot-Plug, 8.1IHPC Configuration Registers

WXB Hot-Plug 8

8.1IHPC Configuration Registers

Each WXB supports two independent Integrated Hot-Plug1Controllers (IHPCs). The A-side controller (IHPA) and the B-side controller (IHPB) are configured independently. Each IHPC therefore has its own configuration space. Both configuration spaces are identical.

Each IHPC reserves a 256 byte configuration space. A list of the configuration registers specific to hot-plug operation follows. The default power-up value is included in each register description heading. All registers return to their default values upon the assertion of XRST# or PCI reset (for the particular side in question) unless otherwise noted in the description. The standard PCI Configuration registers are not described here when implemented exactly as described in the PCI Specification 2.2.

The following map shows registers specific to the IHPC.

1.WXB Integrated Hot-Plug controller derived from technology licensed from Compaq Corporation.

Intel® 460GX Chipset Software Developer’s Manual 8-1