User`s guide

LSI Confidential
PCI Performance 1-5
Copyright © 2006-2007 by LSI Corporation. All rights reserved.
• 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-KB 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 class 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