Ultra DMA


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Ultra DMA

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To reduce problems related to skew, 100MHz transfers (Ultra DMA Mode 5) must use 3.3V signaling (vs.
Ultra Direct Memory Access (Ultra DMA, or more accurately, Ultra DMA/33, also known as ATA-33) is a protocol for transferring data between a hard disk drive through the computer's bus to its RAM.
Current versions feature an ATAPI interface, which supports PIO mode 4, DMA multi-word mode 2, and Ultra DMA 33.
* Principales caracteristicas Chipset VIA P4M800/VT8237, dos ranuras DIMM para modulos DDR 400/333 de 184 pines, hasta 2GB en RAM, tres ranuras PCI, una ranura AGP 8x, una ranura CNR, dos conectores IDE con soporte para Ultra DMA 33/66/100, dos conectores SATA, ocho puertos USB 2.0, video integrado S3 UniChrome con hasta 64MB de memoria compartida, tarjeta de red 10/100, factor de forma micro ATX.
Dual Ultra DMA 33/66/100 hard disk interfaces and a 3.5"/5.25" floppy disk controller support rotational media.
Ultra DMA introduced CRC-based error detection in data packets as part of the ATA-3 standard.
Both the SCSI and IDE versions of the VXA-1 tape drive offer capacities up to 66Gb at 6Mb/s, with the VXA-1 IDE tape drive featuring an Ultra DMA mode 2 interface and the VXA-1 SCSI tape drive providing a Fast and Wide SCSI Ultra 2 LVD interface.
This extremely fast notebook PC includes 256-MB of RAM, a 20-GB Ultra DMA hard disk, an 8X DVD drive (built in), a 56K V.90 FAX/modem (built in), 64-bit 3D wavetable sound with dual built-in stereo speakers, a built-in 10/100 Ethernet interface and Windows 98SE installed.
The single-chip controller integrates an Ultra DMA IDE/Atapi controller, CD block decoder/encoder, CD-DSP, DVD-DSP, CD/DVD servo, CD wobble servo, CD write strategy, and CSS content protection authentication.
The Intel 810E2 chipset, which supports the 100MHz system bus, is designed to bring new features to value PCs including an advanced I/O controller, support for ATA-100 Ultra DMA hard drives and new USB controllers to support four 'plug-and-play' ports for system attachments and other consumer items.
In Ultra DMA mode, a specification recommended as part of the PC 98 System Design Guide, the drive offers burst transfer rates of 33.3 MB/sec.
The IDE Duplicator supports all IDE drives, including IDE, Enhanced IDE and Ultra DMA mode drives in both 2.5-inch notebook and 3.5-inch desktop interfaces (2.5-inch adapters sold separately).