Intel AP440FX specifications Audio Subsystem, Management Extension Hardware

Motherboard Description

1.10 Audio Subsystem

The AP440FX motherboard features a 16-bit stereo audio subsystem as a factory installed option. The audio subsystem is based on the Crystal CS4236 multimedia codec. The CS4236 provides all the digital audio and analog mixing functions required for playing and recording of audio on personal computers. These functions include:

∙Stereo analog-to-digital and digital-to-analog converters

∙Analog mixing

∙Anti-aliasing and reconstruction filters

∙Line and microphone level inputs

∙Digital audio compression using selectable A-law / μlaw

∙Full digital control of all mixer and volume control functions

The CS4236 also provides support for four major sound standards including AdLib†, Sound Blaster Pro 2.0, Windows Sound System, and MPU-401. The CS4236 also supports full-duplex operation which ensures support for applications such as video conferencing.

The CS4236 includes a Plug and Play compatible ISA interface and is comprised of seven logical devices including:

∙Synthesizer

∙Game Port

∙Sound Blaster

∙Sound System

∙MPU-401

∙CD-ROM

∙CS4236 device

Each logical device is configured into the host environment using the ISA Plug and Play configuration methodologies. The audio subsystem requires up to two DMA channels and one interrupt. The computer can be configured to use either DMA channels 0, 1, or 3. The interrupt can be mapped to use interrupt 5, 7, 9, 11, 12, or 15.

1.11 Management Extension Hardware

The Management Extension hardware provides low-cost instrumentation capabilities designed to reduce the total cost of PC ownership. The Management Extension hardware incorporates features that support the requirements of the Desktop Management Interface (DMI) compliant areas of the BIOS, as well as those of the LANDesk® Client Manager software. The hardware implementation is a single-chip ASIC with the following features:

∙An integrated temperature sensor plus support for an external temperature sensor

∙Support for one fan speed sensor

∙Power supply voltage monitoring to detect levels above or below acceptable values

∙Registers for storing POST hardware test results and error codes

∙Remote reset capabilities from a remote peer or server through LANDesk Client Manager, Version 3.0 and service layers (when available)

∙Hardware compatibility with Windows NT†.

19