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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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VSC7511 датащи(PDF) 22 Page - Microsemi Corporation |
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VSC7511 датащи(HTML) 22 Page - Microsemi Corporation |
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22 / 324 page  Product Overview VMDS-10488 VSC7511 Datasheet Revision 4.2 7 Figure 1 • Block Diagram 2.3.1 Frame Arrival The Ethernet interfaces receive incoming frames and forwards these to the port modules. The 2.5G SGMII ports support both 100BASE-X and 1000BASE-X-SERDES. Each port module contains a Media Access Controller (MAC) that performs a full suite of checks, such as VLAN Tag aware frame size checking, Frame Check Sequence (FCS) checking, and Pause frame identification. Each port module that connects to a SerDes block contains a Physical Coding Sublayer (PCS), which perform 8 bits/10 bits encoding, auto-negotiation of link speed and duplex mode, and monitoring of the link status. Full-duplex is supported for all speeds, and half-duplex is supported for 10 Mbps and 100 Mbps. Symmetric and asymmetric pause flow control are both supported as well as priority-based flow control (IEEE 802.1Qbb). All Ethernet ports support Energy Efficient Ethernet (EEE) according to IEEE 802.3az. The shared queue system is capable of controlling the operating states, active or low-power, of the PCS. The PCS understands the line signaling as required for EEE. This includes signaling of active, sleep, quiet, refresh, and wake. Analyzer Ingress Processing Rewriter Egress Processing Shared Memory Pool Memory Controller Shaper and Scheduler GPIO nRESET GPIO functions: LED, serial GPIO, UART, two-wire serial interface, IRQ, MIIM, LOS, SyncE, 1588, RefClk Discard Statistics Shared Queue System Automated Frame Injection CuPHY 1G Port Modules MAC, 1588 Time Stamping x4 Frame Bus VCore Arbiter VCore CPU Bus Switch Core Registers VCore SBA Access Block Temperature Sensor Interrupt Controller Timers Switch Core Access Block SI Slave Frame DMA (FDMA) Manual Frame Inject/Extract MIIM Slave 8051 VRAP Ethernet Register Access Port L2CP Handling Ingress Classification (VLAN, QoS class) QoS Mapping Access Control Lists Policing (Port, QoS, ACL) Forwarding L2 IEEE1588 Engine Egress VCAP Lookup IEEE1588 Engine Frame Editing: VLAN tags DSCP IEEE1588 L2/L3/L4 Protection Switching PCIE (Optional instead of NPI) PCIe SI SI 22 1G CuPHY 1000BASE-T x4 SerDes6G Lane 2.5G Port Modules MAC, PCS 1588 Time Stamping x1 NPI 2.5G SGMII 1G SGMII 100BASE-FX x1 1G Port Modules MAC, 1588 Time Stamping x4 SerDes1G/6G Lane x4 1G SGMII 100BASE-FX |
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