EW80314GS Q 099 Intel, EW80314GS Q 099 Datasheet - Page 28

• Manufacturer Part Number: EW80314GS Q 099
• Manufacturer: Intel

Specifications of EW80314GS Q 099

• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Specification Changes
Specification Changes
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Affected Docs: Intel
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Affected Docs: Intel
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Affected Docs: Intel
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Affected Docs: Intel
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Intel
mode operation
Several critical issues have been identified with the 80314 PCI-X blocks configured in transparent
mode. The 80314 does not support transparent modes of operation. The PCI-X blocks in the 80314
must be configured for embedded mode.
SFN buffer sizes for PCI-X and SDRAM interfaces
Starting with the B0 stepping of the Intel
size in both the PCI-X and SDRAM interfaces is increased from 256 bytes to 1024 bytes (default).
External storage traffic patterns from PCI-X to PCI-X or PCI-X to SDRAM can achieve higher
throughput. The 1 K buffers are utilized only for transactions that are initiated on one of the PCI-X
buses (PCI-X mode only). Configurations with PCI-initiated transactions must still use 256 bytes.
Transactions initiated by all other sources (DMA, GigE, CIU) also use 256-byte packets.
A PCI configuration must disable 1 KByte packet use (use 256-byte packet size) by clearing bit[2]
of the MISC_CSR (0x040). Bit[2] was previously reserved.
Only two REQ/GNT pairs are available with the internal arbiter when the
PCI-X interface is 100 MHz or greater
For A0, only two devices are supported on a PCI-X segment running at 100 MHz or greater. B0
and later silicon removes this restriction.
This item has been corrected and removed from this specification update
CacheLineWrap mode is not supported
CacheLineWrap mode is not supported in the 80314.
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80314 I/O Processor Companion Chip Developer’s Manual
80314 I/O Processor Companion Chip Developer’s Manual
80314 I/O Processor Companion Chip Developer’s Manual
80314 I/O Processor Companion Chip Developer’s Manual
80314 I/O Processor Companion Chip does not support transparent
Intel
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80314 I/O Processor Companion Chip Specification Update
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80314 I/O Processor Companion Chip, the fabric buffer