AMD Confidential

User Manual

November 21st, 2008

7.15 PCI-X Test Device

This PCI-X Test Device model provides a simulation of a generic PCI-X device. Its main purpose is to provide BIOS programmers with a tool to test the PCI-X configuration cycle. This device is implemented as a single-function device.

Interface

The interface varies from system to system. In the AMD Athlon 64 or AMD Opteron processor-based system configurations, it can be connected to AMD-8131 PCI-X or AMD-8111 Southbridge devices.

Initialization and Reset State

At creation and reset states, the PCI-X device registers have the default hard-coded values. By default, the PCI-X device is set to have no I/O, memory-space and interrupt capability. The PCI-X device has a default Device ID and Vendor ID. At reset, the device configuration does not change and the values from the device configuration will be eventually read into the PCI-X registers when the configured system is restarted.

Contents of a BSD

PCI-X register and interrupt signals are saved in the BSD.

Differences from Real Hardware

This is a generic PCI-X device. It doesn't have real a memory buffer and I/O buffer. For memory and I/O space transaction, if the transaction belongs to this device's memory or I/O address range, the PCI-X device simply outputs a message to the Log Window which identifies its memory or I/O cycle.

Interrupt can be de-asserted by doing an I/O transaction. Interrupts can also be de- asserted manually by using the debugger.

Chapter 7: Device Configuration

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AMD 4.4.5 user manual PCI-X Test Device, 101

4.4.5 specifications

AMD 4.4.5 is a robust version of the AMD software ecosystem that focuses on enhanced performance, stability, and efficiency for users relying on AMD processors and graphics cards. This iteration brings various features and technologies designed to optimize gaming, professional applications, and general computing tasks.

One of the standout enhancements in AMD 4.4.5 is the integration of Smart Access Memory technology, which allows the CPU to access the full graphics memory directly. This feature enhances data flow between the CPU and GPU, leading to improved frame rates and overall performance, especially in memory-intensive games. Users can experience a marked increase in gaming performance without the need for additional hardware upgrades.

Another significant feature introduced is the updated Radeon Software Adrenalin Edition. This software update encompasses optimizations for various games, ensuring that gamers can enjoy a seamless experience with the latest titles. The Adrenalin interface also provides features such as Radeon Chill, which helps reduce power consumption during less demanding scenes, and Radeon Anti-Lag, designed to minimize input lag and enhance responsiveness in competitive gaming.

Additionally, AMD 4.4.5 brings the latest drivers that include important performance enhancements and bug fixes that allow for greater system stability. Regular updates ensure that users have the best experience with their AMD hardware, and it significantly bolsters compatibility with the latest gaming titles and software applications.

AMD's Enhanced Sync technology offers users the ability to eliminate screen tearing and stuttering while delivering smooth gameplay. It dynamically synchronizes the refresh rate of the display with the frame rates produced by the GPU, improving the visual experience significantly.

With the introduction of FidelityFX Super Resolution, AMD continues to bolster its suite of technologies that enhance graphics quality and performance. This feature allows lower-resolution images to be upscaled effectively, making it easier for users to enjoy high-end visuals without taxing their hardware excessively.

In summary, AMD 4.4.5 represents a comprehensive update for users by integrating cutting-edge technologies that cater to a wide range of applications from gaming to content creation. With enhancements across the board, AMD reaffirms its commitment to providing high-performance solutions that keep pace with the ever-evolving technology landscape. Whether for gaming aficionados or professional creators, the capabilities offered in this version make it a significant milestone in the AMD software ecosystem.