10Gb+以太网MAC

Features

• Compliant to IEEE 802.3-2005 standard, successfully passed University of New Hampshire InterOperability Laboratory (UNH-IOL) 10GbE MAC hardware tests
• Supports standard 10Gbps Ethernet link layer data rate
• Supports rates up to 12Gbps by over-clocking
• 64-bit wide internal data path operating at 156.25MHz to 187.5MHz
• XGMII interface to the PHY layer (using IODDR external to the core)
• XAUI interface to the PHY layer (using PCS/SERDES external to the core)
• Simple FIFO interface with user's application
• Optional Multicast address filtering
• Transmit and receive statistics vector
• Optional statistics counters of length from 16 to 40 bits for all devices (statistic counters are external to the core)
• Programmable Inter Frame Gap
• Supports:
  • Full duplex operation
  • Flow control using PAUSE frames
  • VLAN tagged frames
  • Automatic padding of short frames
  • Optional FCS generation during transmission
  • Optional FCS stripping during reception
  • Jumbo frames up to 16k
  • Inter frame Stretch Mode during transmission
  • Deficit Idle Count

Data rates up to 12Gbps are supported by increasing the 10 Gb+ Ethernet MAC system clock rate from the standard frequency of 156.25MHz used for processing 10Gbps data up to frequencies as high as 187.50MHz.