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PCIe Technology_v0.1a.ppt

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PCIe Technology_v0.1a.ppt
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PCIe Technology (Peripheral Component Interconnect Express),Prepared by : Nicolas Update Date: 2012 June,PGC Confidential,2,PCIe Basics,演進歷史,PGC Confidential,3,PCIe Basics,,PCI Express與其他傳輸規格比較,4,PCIe Basics,,The PCI Express WayThe Link - A Point-to-Point Interconnect Differential Signaling Switches Used to Interconnect Multiple DevicesPacket Based Protocol Address Space the same address spaces as PCI: memory, IO and configuration address spaces (256 Bytes to 4 Kbytes). PCI Express Transactions Memory read and write, I/O read and write, configuration read and write. PCIe supports a new transaction type called Message transactions.,PGC Confidential,5,PCIe Basics,,The PCI Express WayMSI Style Interrupt Handling Similar to PCI-X PCIe supports legacy interrupt handling in-band by encoding interrupt signal transitions (for INTA#, INTB#, INTC# and INTD#) using Message transactions. Power Management Device power states: D0, D1, D2, D3-Hot and D3-Cold. Link power states: L0, L0s, L1, L2 and L3. Hot Plug Support PCI Express Topology Root Complex Endpoint Switch PCIe-to-PCI(-X) Bridge Port Upstream Port Downstream Port,PGC Confidential,6,PCIe Architecture Overview,,PCI Express Transactions,PGC Confidential,7,PCIe Architecture Overview,PCI Express Transactions,PGC Confidential,8,PCIe Architecture Overview,PCI Express Transactions,PGC Confidential,9,PCIe Architecture Overview,PCI Express Transactions,PGC Confidential,10,PCIe Architecture Overview,PCI Express Device Layers,PGC Confidential,11,PCIe Architecture Overview,PCI Express Device Layers Transaction Layer Packet (TLP). Data Link Layer Packet (DLLP). Physical Layer Packet (PLP). Transaction Layer Packet (TLP).,ECRC: End-to-End CRC,PGC Confidential,12,PCIe Architecture Overview,PCI Express Device Layers Data Link Layer Packet (DLLP) for Link Management functions . Flow Control DLLPs (FCx) acknowledge/ no acknowledge DLLPs which confirm reception of TLPs (ACK and NAK) power management DLLPs (PMx).,PGC Confidential,13,PCIe Ar
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