ID
683191
Date
5/04/2015
Public
1. Altera Low Latency Ethernet 10G MAC IP Core Migration Guidelines
Altera offers two Ethernet MAC IP cores that can support up to 10 Gbps speed mode—10-Gbps Ethernet (10GbE) Media Access Controller (MAC) IP core and Low Latency Ethernet 10G MAC IP cores. The Low Latency Ethernet 10G MAC IP core is an enhanced version of the 10GbE MAC IP core and it provides lower resources and lower latency with an improved MAC functionality.
Existing users of the 10GbE MAC IP core can migrate to the Low Latency Ethernet 10G MAC IP core with minimal modifications on the system. However, it is important for you to understand the differences between these two IP cores before proceeding with the migration. This document describes the differences of both the MAC IP cores and provides the migration steps from 10GbE MAC IP core to Low Latency Ethernet 10G MAC IP core.
As a summary, there are multiple major differences between 10GbE MAC IP core and Low Latency Ethernet 10G MAC IP.
Features | Low Latency 10G Ethernet MAC IP core | 10GbE MAC IP core |
---|---|---|
Supported Device | Arria 10, Arria V GZ, Stratix V | Cyclone, Arria, and Stratix devices except Arria 10 1 |
MAC Latency (TX + RX) |
|
|
Avalon Streaming (Avalon-ST) Interface Data width | 32-bit, 64-bit | 64-bit |
XGMII Interface Data width | 32-bit, 64-bit | 64-bit |
Register mapping |
|
Starting address 0x000 |
ECC detection and correction | Available | Not Available |
1 Device variant and Quartus II version dependent. Refer to the 10-Gbps Ethernet MAC IP Core User Guide for more information.