PCI Performance 1-5
Version 1.0 Copyright © 2006 by LSI Logic Corporation. All rights reserved.
• Contains a replay buffer that preserves a copy of the data for
retransmission in case a CRC error occurs
• Supports the PCI Express Advanced Error Reporting capabilities
• Uses a packetized and layered architecture
• Achieves a high bandwidth per pin with low overhead and low latency
• PCI Express is software compatible with PCI and PCI-X software
– Leverages existing PCI device drivers
– Supports the Memory, I/O, and Configuration address spaces
– Supports memory read/write transactions, I/O read/write
transactions, and configuration read/write transactions
• Provides 4 Kbytes of PCI Configuration address space per device
• Supports posted and non-posted transactions
• Provides quality of service (QOS) link configuration and arbitration
policies
• Supports Traffic Class 0 and one virtual channel
• Supports Message Signaled Interrupts (both MSI and MSI-X) as well
as INTx interrupt signaling for legacy PCI support
• Supports end-to-end CRC (ECRC) and Advanced Error Reporting
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