Soyo SY-K7VTA Pro 用户手册

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页码 98
Motherboard Description 
SY-K7VTA PRO 
13 
buffers and sixteen levels (doublewords) of prefetch buffers are included 
for concurrent PCI bus and DRAM/cache accesses.    The chip also 
supports enhanced PCI bus commands such as Memory-Read-Line, 
Memory-Read-Multiple and Memory-Write-Invalid commands to 
minimize snoop overhead.    In addition, advanced features are supported 
such as snoop ahead, snoop filtering, L1/L2 write-back forward to PCI 
master, and L1/L2 write-back merged with PCI post write buffers to 
minimize PCI master read latency and DRAM utilization.    Delay 
transaction and read caching mechanisms are also implemented for further 
improvement of overall system performance. 
  VT82C686B 
The VT82C686B PSIPC (PCI Super-I/O integrated Peripheral Controller) 
is a high integration, high performance, power-efficient, and high 
compatibility device that supports AMD and non-AMD based processor to 
PCI bus bridge functionality to make a complete Microsoft 
PC99-compliant PCI/ISA system In addition to complete ISA extension 
bus functionality, the VT82C686B includes standard AMDligent 
peripheral controllers: 
1) Master mode enhanced IDE controller with dual channel DMA engine 
and interlaced dual channel commands. Dedicated FIFO coupled with 
scatter and gather master mode operation allows high performance 
transfers between PCI and IDE \devices. In addition to standard PIO and 
DMA mode operation, the VT82C686B also supports the UltraDMA-33 
standard to allow reliable data transfer rates up to 33MB/sec throughput. 
The VT82C686B also supports the UltraDMA-66 standard. The IDE 
controller is SFF-8038I v1.0 and Microsoft Windows-family compliant. 
2) Universal Serial Bus controller that is USB v1.1 and Universal HCI 
v1.1 compliant. The VT82C686B includes the root hub with four 
function ports with integrated physical layer transceivers. The USB 
controller allows hot plug and play and isochronous peripherals to be 
inserted into the system with universal driver support. The controller 
also implements legacy keyboard and mouse support so that legacy