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True Peer-to-Peer Support Root Complex Root Complex End Point Switch End Point End Point Other PCIe Switches End Point End End Point Point ‣ PLX PCIe Switches • Simultaneous Transactions • No host involvement • Reduced latency • Enhanced CPU Performance • Optimized Peer-to-Peer Bandwidth/Performance End End Point Point ‣ Other PCIe Switches • Claim Peer-to-Peer…but… • No Simultaneous Transactions • May require host-support • Added latency • Reduced CPU Performance • Bandwidth/Performance impact for Peer-to-Peer traffic © PLX Aug 2007 18
Port Arbitration ‣ Allows priority assignment to specific ports • Round Robin or Weighted Round Robin schemes can be used Egress Port Switch 010101000011110101011 010101000011110101011 010101000011110101011 010101000011110101011 010101000011110101011 010101000011110101011 010101000011110101011 010101000011110101011 Packet Queue User assigns priority or weight for ports Example: Green port weight = 2 Yellow and Gray weight = 1 Port arbiter serves green port twice the rate of other ports Ingress Ports © PLX Aug 2007 19
Page 1 and 2: PLX Technology PCI Express Products
Page 3 and 4: PLX Interconnect Products ‣ PLX i
Page 5 and 6: PCI Express in Servers Bridge GE CP
Page 7 and 8: PCI Express in Peripherals & Consum
Page 9 and 10: PCI Express in Embedded FPGA FPGA B
Page 11 and 12: PLX: Switch Market Leading Supplier
Page 13 and 14: Port Flexibility ‣ Flexible • P
Page 15 and 16: Crosslink & Moveable Upstream Port
Page 17: Cut-Thru ‣ Cut-Thru Architecture
Page 21 and 22: Non-Blocking Internal Architecture
Page 23 and 24: Spread Spectrum Clock Support T Hos
Page 25 and 26: VAUX/WAKE#/Beacon WAKE#/Beacon Supp
Page 27 and 28: Additional Key Features ‣ Quality
Page 29 and 30: 48 Lane Switch ‣ PEX 8548 • Ind
Page 31 and 32: Storage Servers CPU Chip Set Memory
Page 33 and 34: 32 Lane Port Configurations PEX 853
Page 37 and 38: 16 Lane Port Configurations x4 PEX
Page 39 and 40: 12 Lane Port Configurations x4 PEX
Page 43 and 44: 5 Lane Port Configurations x1 PEX 8
Page 45 and 46: Bridge Road Map - PCI, PCI-X, PCIe
Page 47 and 48: PEX 8111 Overview ‣ Proven Intero
Page 49 and 50: Example on Motherboard PCI Slots PC
Page 51 and 52: PCI Features ‣ PCI r3.0 compliant
Page 53 and 54: PCIe to PCI-X Bridge Example 4 4 PE
Page 55 and 56: PCI-X/PCI Bus Features ‣ PCI-X r1
Page 57 and 58: AdvancedTCA with AMC PCI - X PCI-X
Page 59 and 60: Local Bus Bridge Road Map Local/PCI
Page 61 and 62: System Controller Card EEPROM SRAM
Page 63: End of Presentation Thank You www.p

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