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Altera_Forum's avatar
Altera_Forum
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15 years ago

Low latency 1gigabit Ethernet MAC

Hello everybody :) Anyone can refer me to a MAC that have the minimum latency as possible ? A MAC for the 1gigabit operation (we think use Stratix 4 fpga) Thank you Shalom
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

What do you mean by 'latency'?

I guess that the delay between the time some data is received on the MII interface and the time when it is available on the stream interface for a TSE MAC is quite small and constant. But if you add the latency due to the software part, until the data is available at the UDP or TCP level will be quite higher, and will depend on the OS, IP stack and driver used. This latency could be reduced by using some hardware acceleration/implementation of the higher level of the stack.