Motherboard Description
SY-K7VLM-B
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CHIPSET
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VT8364
The KL133 chip set consists of the VT8364 system controller (552 pin
BGA) and the VT82C686B PCI to ISA bridge (352 pin BGA). The system
controller provides superior performance between the CPU, DRAM and
PCI bus with pipelined, burst, and concurrent operation.
The VT8364 supports six banks of DRAMs up to 1.5GB. The DRAM
controller supports standard, Synchronous DRAM (SDRAM) and Virtual
Channel SDRAM (VC SDRAM), in a flexible mix / match manner. The
Synchronous DRAM interface allows zero wait state bursting between the
DRAM and the data buffers at 66/100/133 MHz. The six banks of DRAM
can be composed of an arbitrary mixture of 1M/2M/4M/8M/16M/32MxN
DRAMs. The DRAM controller can run at either the host CPU bus
frequency (66/100/133 MHz) or at the AGP bus frequency (66 MHz) with
built-in PLL timing control.
The VT8364 system controller also supports full AGP v2.0 capability for
maximum bus utilization including 1x/2x/4x mode transfers, SBA (Side
Band Addressing), Flush/Fence commands, and pipelined grants. An eight
level request queue plus a four level post-write request queue with thirty-
two and sixteen quad words of read and write data FIFO’s respectively are
included for deep pipelined and split AGP transactions. A single-level
GART TLB with 16 full associative entries and flexible CPU/AGP/PCI
remapping control is also provided for operation under protected mode
operating environments. Both Window 95 VxD and Windows 98
/Windows 2000 mini port drivers are supported for interoperability with
major AGP-based 3D and DVD- capable multimedia accelerators.
The VT8364 supports two 32-bit 3.3/5V system buses (one AGP and one
PCI) that are synchronous/ pseudo-synchronous to the CPU bus. The chip
also contains a built-in bus-to-bus bridge to allow simultaneous concurrent
operations on each bus. Five levels (double words) of post write buffers
are included to allow for concurrent CPU and PCI operation. For PCI
master operation, forty-eight levels (double words) of post write buffers
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