AMD Confidential

User Manual

November 21st, 2008

7.16 AMD-8151™ AGP Bridge Device

The AMD-8151 AGP Bridge Device tunnel is a HyperTransport tunnel that provides an AGP bridge. In general, AMD-8151 would be connected in a non-coherent HyperTransport chain between the host bridge and the Southbridge.

Interface

The AMD-8151 has three types of interfaces, HyperTransport, AGP, and INT/IOAPIC buses. The AMD-8151 has two HyperTransport links, HT0 and HT1, that can connect to other non-coherent HyperTransport link-capable devices. HT0 should be connected to the upstream link (the one closest to the host bridge) and HyperTransport1 should be connected to the downstream link. The AGP interface should be connected to an AGP graphics device. The INT_IOAPIC bus should be connected to the Southbridge; it routes interrupt signals from the AGP bus to the Southbridge.

Initialization and Reset State

When first initialized or reset, the AMD-8151 registers are set to their default state. This is described in detail in the AMD-8151 datasheet.

Contents of a BSD

The current state of all PCI configuration registers and any internal state variables are saved in the BSD.

Configuration Options

The AMD-8151 device allows you to set its Revision number as shown in Figure 7-29.

Figure 7-29: AMD-8151™ Device Properties Dialog

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Chapter 7: Device Configuration

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AMD 4.4.5 user manual AMD-8151 AGP Bridge Device, AMD-8151 Device Properties Dialog

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.