Beyond Semiconductor
Beyond MAC 10/100/1000 Ethernet Controller

The Beyond MAC (Medium Access Control) 10/100/1000 Ethernet Controller consists of a synthesizable Verilog RTL core that provides all features necessary to implement the Layer 2 protocol of the Ethernet standard. It is designed to run according to the IEEE 802.3 and IEEE 802.3-2002 specifications that define the 10 Mbps, 100 Mbps and 1000 Mbps Ethernet standards, respectively. An external PHY is needed for the complete Ethernet solution.
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Data Link Layer
  • IEEE 802.3-2002 specification with preamble, start-of-frame delimiter (SFD), frame padding generation and cyclic redundancy code (CRC) generation and checking is fully implemented
  • Supports 10/100 Mbps or 1000Mbps operation (selectable via a core configuration registers)
  • Supports full- and half-duplex operation (selectable via a core configuration registers)
  • CSMA/CD protocol for half-duplex operation
  • Supports frame-extension in 1000 Mbps half-duplex mode
  • IEEE 802.3x flow-control for full duplex operation
  • Variety of flexible address filtering modes
  • Detection of too long or too short packets (configurable length limits)
  • Complete status for TX/RX packets
PHY Interfaces
  • IEEE 802.3-2002 Media Independent
  • Interface (MII) and Gigabit Media
  • Independent Interface (GMII)
  • MDIO Master interface for PHY device configuration and management
Transmit (TX) / Receive (RX) Dual Port Synchronization Rems
  • Configurable TX threshold level
  • RX transfer started as soon as data synchronized
  • Configurable RAMs sizes – up to 16kB
DMA Controller
  • Internal RAM for holding up to 128 TX/RX buffer descriptors
  • Configurable number of TX/RX buffer descriptors
  • Supports transmission and reception of packets that are bigger than standard packets (up to 16-Kbyte) – jumbo frames
  • Interrupt generation on all events
  • Big/little endian data byte ordering
Host Interface
  • Two interrupts lines with corresponding interrupt mask register (split TX and RX operation)
  • Clock switch control port (10/100 or 1000 Mbit)
  • Optional status counters
Supported SoC Bus Interfaces
The core is available with support for any of the following interconnect options:
  • AMBA AXI / AHB / APB as appropriate
  • Other buses: for additional options please contact us

Beyond MAC 10/100/1000 Ethernet Controller

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