FIC A360 Enhanced IDE, Audio, Super I/O, Pcmcia, Software Functional Overview, Ultra DMA

Software Functional Overview

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3.3.4 Enhanced IDE

The system BIOS must be ready to support 4 IDE devices on two controllers. The BIOS support Ultra DMA 33 and also supports automatic configuration of drives using both the LBA and CHS large drive remapping method. In addition to supporting standard drives through an auto-configuration process that does NOT require user involvement or confirmation. The system should automatically do this at POST time in a way that is transparent to the user. If a drive is connected to the bus, the drive should be automatically recognized, configured and available for use under MS-DOS 6.2x.

Ultra DMA

Ultra DMA 33 is a physical protocol used to transfer data between an Ultra DMA/33 capable IDE controller and one or more Ultra DMA/33 capable IDE devices. It utilizes the standard Bus Master IDE functionality and interface to initiate and control the transfer. Ultra DMA/33 utilizes a “source-synchronous” signaling protocol to transfer data at rates up to 33 Mbytes/sec.

3.3.5Audio

The audio subsystem will support the requirements identified by the AC’97 specification. Both software and hardware will control the volume level for the internal audio subsystem. In addition to the volume control, the user will be able to mute the sound to completely cut off the volume using both software and hardware.

3.3.6Super I/O

This controller contains 16550A or FIFO Enabled UART, ECP/EPP/Uni-directional Parallel Port meeting the 1284 specification, and an Infrared port.

3.3.7PCMCIA

The PCMCIA controller chip of the notebook provides the following features:

•Individually accessed, dual-buffer implementation

•Support for 2 separate CardBus slots (one type III or two type II stacked)

•Support for 3.3v, 5v and 12v (flash programming) cards

FIC A360 Service Manual 3-7