10/100/1000 Ethernet MAC (GEMAC) IP *

The GEMAC is a highly configurable 10-Gigabit Ethernet MAC core for use in Gigabit Ethernet chip designs. The hardware configurable features allow the core to be used in switching, routing, uplinks, server adapters and other SOC applications.

The Gigabit Ethernet Controller core implements a Medium Access Controller (MAC) and associated user application interface. It is designed to comply with the IEEE802.3ae to meet the requirements for both WAN/MAN and LAN connectivity. It provides automatic flow-control implementation (Pause frames) as well as support for virtual bridged LANs (VLAN, 802.1Q) offering usage in a wide area of applications.

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* - Rambus IP; Sold under GDA’s Re-seller agreement with Rambus, Inc.

Features

Gigabit Ethernet Media Access Controller

Compliant to IEEE 802.3 specifications

  Supports 10/100/1000 Mbps PHY devices
    with auto-negotiation feature

  Supports full duplex flow control
  Supports half duplex for 10/100 Mbps operation
  Supports VLAN - compliant to IEEE 802.1Q

  GMII interface on line side each link
  32-bit wide, point-to-point interface (DTI) on system side
  Configurable depth for Tx and Rx FIFOs

  Store-and-forward and cut-through modes
    of operation
  Jumbo and short frame support
  Statistics counters for RMON, SNMP, and 802.3