VT8235 VIA ICH south bridge motherboard chip
The new VIA VT8235 South Bridge has been designed from
the ground up to incorporate the essential features of the 'Total Connectivity' era. First to market innovations include 8X V-Link interface, integrated support for six USB 2.0 ports for peripheral connectivity 40 times faster than USB 1.1, and ATA-133 support, the fastest parallel IDE interface available. Additional features integrated into the South Bridge include a VIA 10/100Mbps Ethernet MAC, integrated PCI support, 6 Channel Surround Sound AC-97 audio, and MC-97 modem support.
VIA developed V-Link technology to remove the PCI bus bottleneck in inter-chip communication. In less advanced chipsets, the PCI bus is responsible for connecting both the North and South Bridge, as well as providing a bus for most add-in peripherals. VIA 8X V-Link technology provides a dedicated 133MHz quad-pumped bus between the North and South Bridge, freeing up the PCI bus to deal strictly with peripheral devices and providing aggregate transfer of 533MB/s, four times the bandwidth of the original PCI interconnect.
USB 2.0: Empowering Peripherals Like Never Before
VIA has long recognized the potential of USB as a universal interconnect system, designing USB 1.1 support into our award-winning core logic chipsets well in advance of the proliferation of USB-enabled PC peripherals. Following the widespread adoption of USB 1.1, VIA now sees the drive to new industry standard USB 2.0 as a natural evolution, meeting the greater bandwidth demands of today's PC peripherals and applications, from higher resolution video to fast storage unit access, while being backwards compatible with existing peripherals.
As a member of the USB Implementers Forum, VIA is helping to facilitate an industry-wide move towards adoption of the latest USB specifications, by integrating full support for the high bandwidth technology into upcoming core logic chipsets, and by expanding our product lineup of Hi-Speed USB 2.0 discrete chips.
ATA-133 FastDrive™ is the fastest IDE standard currently available on the market, and allows each IDE controller to burst up to 133MB/s. This offers a significant performance improvement in data intensive professional applications and in consumer applications including gaming, audio and video. The faster interface will also save time when booting up the system and opening new applications. In the VIA VT8235 South Bridge, each controller also supports up to two devices, for a total of four ATA-133 capable drives. In multiple configurations including RAID, the performance benefits of the faster interface are particularly apparent.
Integrated Surround Sound Support
Supporting the AC'97 version 2.2 standard, the VIA VT8235 when connected to a compatible codec can support 6-channel audio for a complete surround sound listening experience. In addition, the interface can support S/PDIF digital outputs and optional features such as tone and loudness control, and 3D stereo enhancement.
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