PLB Ethernet 10/100 Mbps Media Access Controller (PLB EMAC)

Documentation

• PLB Ethernet 10/100 Mbps Media Access Controller

Device Family Support

• Virtex-4 FX
• Virtex-II Pro
• Virtex-II
• Virtex-E
• Virtex
• Spartan-3A
• Spartan-3
• Spartan-IIE

The PLB EMAC is a 10/100 Ethernet MAC which includes an interface to the Processor Local Bus (PLB). It has been designed to the IEEE Std. 802.3 specification.The design provides a 10 Megabit per second (Mbps) and 100 Mbps (Fast Ethernet) EMAC Interface. The core supports auto-negotiable and non auto-negotiable PHYs for 10BASE-T, and 100BASE-TX/FX IEEE 802.3 compliant MII PHYs operating in full or half duplex mode.

Key Features

• 64-bit PLB master and slave interfaces.
• Memory mapped direct I/O interface to registers and FIFOs plus Simple DMA and Scatter/Gather DMA capabilities for low processor and bus utilization.
• Media Independent Interface (MII) for connection to external 10/100 Mbps PHY transceivers
• MII and management interface control writes and reads with MII PHYs
• Programmable PHY reset signal
• Independent internal TX and RX FIFOs (2K - 32K)
• Designed to IEEE 802.3 specification
• Evaluation version available in EDK