Universal Serial Bus (Usb) Support; Ide Support - Intel AN430TX - Motherboard - ATX Technical Product Specification

AN430TX Motherboard Technical Product Specification
Real-Time Clock
256 byte battery-backed CMOS SRAM
Includes date alarm
16-bit counters/timers based on 82C54

1.7.3 Universal Serial Bus (USB) Support

The motherboard features two USB ports. The ports permit the direct connection of two USB
peripherals without an external hub. If more devices are required, an external hub can be
connected to either of the built-in ports. The motherboard fully supports the standard universal
host controller interface (UHCI) and uses standard software drivers that are UHCI-compatible.
Features of the USB include:
Self-identifying, hot pluggable peripherals
Automatic mapping of function to driver and configuration
Support for isochronous and asynchronous transfer types over the same set of wires
Support for up to 127 physical devices
Guaranteed bandwidth and low latencies appropriate for telephony, audio, and other
applications
Error handling and fault recovery mechanisms built into protocol
NOTE
Computers that have an unshielded cable attached to the USB port might not meet FCC Class B
requirements, even if no device or a low speed (sub-channel) USB device is attached to the cable.
Use shielded cable that meets the requirements for high speed (fully rated) devices.

1.7.4 IDE Support

The motherboard has two independent bus mastering PCI IDE interfaces that support PIO Mode 3,
PIO Mode 4, ATA-33 (Ultra DMA/33), and ATAPI (e.g., CD-ROM) devices. The BIOS supports
Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS) translation modes.
IDE device transfer rate and translation mode are automatically detected by the BIOS.
Normally, programmed I/O operations require a substantial amount of processor bandwidth;
however, in true multi-tasking operating systems like Windows
mastering IDE can be devoted to other tasks while disk transfers are occurring.
1.7.4.1 LS-120 Support
LS-120 MB Diskette technology enables users to store 120 MB of data on a single, 3.5-inch
removable diskette. LS-120 technology is backward (both read and write) compatible with
1.44 MB and 720 KB DOS-formatted diskettes and is supported by Windows 95 and Windows
†
NT operating systems.
The AN430TX motherboard allows connection of an LS-120 compatible drive and a standard
3.5-inch diskette drive. The LS-120 drive can be configured as a boot device, if selected in the
BIOS setup utility.
16
†
95, the bandwidth freed by bus