AMD Confidential

User Manual

November 21st, 2008

7.25 Plug and Play Monitor Device

The Plug and Play Monitor device (PnP Monitor) conforms to the VESA Plug and Play Monitor specification and therefore supports the DDC2B standard. DDC (Display Data Channel) is the Plug and Play standard for monitors. DDC monitors are designed to meet the VESA (Video Electronic Standards Association) standard that defines the DDC implementation. If the video card also supports the DDC standard it gets from the PnP monitor device all the information about its features and makes consequently an automatic configuration for the best refresh values depending on the selected resolution.

The Plug and Play monitor device supports the DDC1 and DDC2B standards. DDC1 is primitive and a point to point interface. The monitor is always put at transmit-only mode (DDC1). The monitor will continuously transmit data until the monitor will be turned off or switched to the bi-directional mode (DDC2). In DDC2 mode the I2C protocol is being used for data transfers.

Interface

The Plug and Play Monitor device model has a VGA and DVI interface connection. Connections can be only made to the VGA or DVI interface. It can be connected to the VGA or DVI connection of a video card device.

Contents of a BSD

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

Initialization and Reset State

When first initialized or reset the Plug and Play Monitors DDC registers are set to their default state. After initialization the monitor device will operate in DDC1 mode. The device will remain in the DDC1 mode until there is a valid HIGH to LOW transition on the SCL pin, when it will switch to DDC2B mode.

Differences from Real Hardware

The model attempts to match the functionality of the physical devices from a programmer's perspective. Upon power-up, a “real” Plug and Play monitor will output valid data only after it has been initialized. During initialization, data will not be available until after the first nine clock cycles are sent to the device. This Plug and Play monitor device model does not simulate this behaviour. It will always output valid data.

The Page Write, Acknowedge Polling, and the Write Protection feature are currently not supported.

Configuration Options

The Plug and Play Monitor device gives you the opportunity to choose from different Plug and Play Monitor device models, as shown in Figure 7-35.

130

Chapter 7: Device Configuration

Page 141 Page 143
Page 142
Image 142
AMD 4.4.5 user manual Plug and Play Monitor Device, Interface
Page 141 Page 143

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.
Top Page Image Contents