AMD Confidential

User Manual

November 21st, 2008

7.6 Super IO Devices: Winbond W83627HF SIO / ITE 8712 SIO

Device models of the Super IO device contain the keyboard, PS/2 mouse, floppy, COM1, COM2, LPT1, IR, fan, GPIO, MIDI, and joystick devices, as well as PCI support and control information. The COM1 and COM2 devices create named-pipes "SimNow.Com1" and "SimNow.Com2” and send all serial communication through these.

Interfaces

The Super IO device model has a single interface connection, and is connected to the LPC connection of the Southbridge device.

Initialization and Reset State

The following conditions represent the keyboard and/or mouse during initialization and reset state:

A20 and reset released.

Mouse scaling set to 1.

Mouse resolution set to 4.

Stream mode off.

Mouse sample rate set to 100.

All sticky keys released.

Keyboard output port set to 0xDF.

The floppy is initialized with no drive image present. Reset clears the controller to an idle state. If an image is loaded, reset does not unload the image.

COM1 and COM2 are initialized with 9600 Baud, no parity, 8-bit words, 1 stop bit, and interrupts off.

The parallel port initializes with the data and control ports set to zero. Reset clears these ports to their initial values.

The following devices have no functionality behind them at this time, with the exception of their configuration registers. These registers are initialized and reset to the values specified in the Super I/O specification:

IR

GPIO

MIDI

Joystick

Fan

Contents of a BSD

Keyboard and Mouse

78

Chapter 7: Device Configuration

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AMD 4.4.5 user manual Super IO Devices Winbond W83627HF SIO / ITE 8712 SIO, Interfaces

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.