MiTAC 8355 service manual Full Featured Accelerated Graphics Port AGP 8x Controller

8355 N/B MAINTENANCE

8 or 16-bit control / address / data transfer both directions

800 / 600 / 400 / 200 MHz Double Data Rate operation both directions

Default 8-bit / 200 MHz operation on startup for high reliability with speedup to dual 16-bit, 800 MHz operation (3.2

GB/sec total bandwidth) under software control (transmit and receive may be different widths and / or speeds)

Full Featured Accelerated Graphics Port (AGP) 8x Controller

Supports 533 MHz 8x, 266 MHz 4x, and 133 MHz 2x transfer modes for AD and SBA signaling AGP v3.0 compliant with 8x transfer mode

Pseudo-synchronous with the host CPU bus with optimal skew control

Supports SideBand Addressing (SBA) mode (non-multiplexed address / data)

AGP pipelined split-transaction long-burst transfers up to 1GB/sec

Eight level read request queue

Four level posted-write request queue

Thirty-two level (quadwords) read data FIFO (256 bytes)

Sixteen level (quadwords) write data FIFO (128 bytes)

Intelligent request reordering for maximum AGP bus utilization

Supports Flush/Fence commands

Graphics Address Relocation Table (GART)

One level TLB structure

Sixteen entry fully associative page table

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