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AMD Confidential
User Manual
November 21
st
, 2008
Chapter 7: Device Configuration
99
7.14 AMD-8132
™ PCI-X
®
Controller
The AMD-8132 PCI-X Controller is a HyperTransport tunnel that provides two PCI-X
buses and two IOAPICs. These PCI-X buses may or may not be configured as hot-plug-
capable, depending on the platform.
Interface
AMD-8132 has two types of interfaces, HyperTransport and PCI buses. It has two
HyperTransport links, HT0 and HT1, that can connect to other HyperTransport link-
capable devices. Either HyperTransport link can be set to be the upstream
HyperTransport link. The PCI bus interfaces in the AMD-8132 must be connected to a
PCI Bus device, which provides the Slot interfaces with which to connect devices for
simulation.
Initialization and Reset State
When first initialized, AMD-8132 device is in its default state. This is described in detail
in the AMD-8132 datasheet. Each bridge defaults with hot-plug functionality disabled.
When reset, AMD-8132 takes on all default register values.
Contents of a BSD
The entire configuration of the AMD-8132 chipset, including all state and registers for its
sub devices, is saved in the BSD.
Configuration Options
The Hot Plug tab options for AMD-8132 are to enable or disable hot-plug for each of its
PCI-X bridges, as shown in Figure 7-27. You cannot enable or disable hot-plug after a
simulation has already begun.
buses and two IOAPICs. These PCI-X buses may or may not be configured as hot-plug-
capable, depending on the platform.
Interface
AMD-8132 has two types of interfaces, HyperTransport and PCI buses. It has two
HyperTransport links, HT0 and HT1, that can connect to other HyperTransport link-
capable devices. Either HyperTransport link can be set to be the upstream
HyperTransport link. The PCI bus interfaces in the AMD-8132 must be connected to a
PCI Bus device, which provides the Slot interfaces with which to connect devices for
simulation.
Initialization and Reset State
When first initialized, AMD-8132 device is in its default state. This is described in detail
in the AMD-8132 datasheet. Each bridge defaults with hot-plug functionality disabled.
When reset, AMD-8132 takes on all default register values.
Contents of a BSD
The entire configuration of the AMD-8132 chipset, including all state and registers for its
sub devices, is saved in the BSD.
Configuration Options
The Hot Plug tab options for AMD-8132 are to enable or disable hot-plug for each of its
PCI-X bridges, as shown in Figure 7-27. You cannot enable or disable hot-plug after a
simulation has already begun.
Figure 7-27: AMD-8132™ Device Hot Plug Configuration
Figure 7-28 shows the HT Link Configuration options.