Ultra-Low Latency 1G Ethernet MAC and PCS

Overview

The Ultra-Low Latency 1G Ethernet MAC and PCS is the industry leading solution for latency critical Ethernet applications. The core is designed using advanced design techniques leading to unmatched ultra-low gate count utilization and amazing latency performances.

It includes a rich set of standard and advanced features making it ideal for a large number of applications. The IP core can support full wire line speed with a 64-byte packet length. It also supports back-to-back or mixed length traffic, up to jumbo frame size, with no dropped packets.

Key Features

  • MAC FEATURES
    • Deficit idle counter (DIC) to maintain a 12-byte inter-packet gap (IPG) average
    • Programmable IPG length (down to 1-byte)
    • Programmable Maximum Receive Unit (MRU), Maximum Transmission Unit
    • User facing logic interface 16-bit @ 250MHz
    • Ethernet flow control and congestion management using pause frames with programmable quanta
    • Programmable Tx minimum packet length with enable/disable padding option
    • Programmable Rx minimum packet length
    • Tx Frame Check Sequence (FCS) computation and insertion
    • Programmable Tx FCS pass-through and corruption insertion modes
    • Programmable keep/strip Rx FCS
    • Programmable Rx FCS error detection and marking
    • Programmable Tx and Rx path VLAN detection (Programmable TPID, stacked VLAN)
    • Configurable statistics vector and collector on transmit and receive MAC data
  • PCS FEATURES
    • Supports 1000BASE-X PHY based on 8B/10B encoding
    • Running disparity compute
    • Configurable statistics vector and collector on transmit and receive PCS

Benefits

  • Compliant with the IEEE 802.3-2012 High Speed Ethernet Standard
  • Ethernet MAC supports 1GbE line rate with flexible feature set
  • Soft PCS logic interfacing to standard serial transceiver at 1.25Gbps

Block Diagram

Ultra-Low Latency 1G Ethernet MAC and PCS Block Diagram

Applications

  • High Frequency Trading
  • Smart NIC
  • Low-Latency Switches
  • Low-Latency Radio
  • Test and Monitoring Equipment

Deliverables

  • Datasheet & user guide
  • Encrypted Verilog
  • Constraints file
  • Reference design
  • Technical support
  • Optional IP design customization

Technical Specifications

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Semiconductor IP