Device Family: Intel® Arria® 10, Stratix® V GS, Stratix® V GT, Stratix® V GX

Type: Answers, Errata

Area: Intellectual Property


Last Modified: April 28, 2017
Version Found: v13.1 Update 3
Version Fixed: v16.0
Bug ID: FB: 366690;

Why are the Low Latency 40G/100G Ethernet IP pause timers off by a factor of two?

Description

Due to a problem with the Intel® Low Latency 40G Ethernet IP core, you will see the pause counters increment twice as fast as expected.  You will see this behavior for both Standard Flow Control and Priority Flow Control modes.

Workaround/Fix

This problem has been fixed in the Intel Quartus® Prime version 16.0 software.