Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 1/21/2022
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8.4.3. EMR Update Interval

You must unload the EMR data within the minimum EMR Update Interval to avoid the current EMR data from being overwritten by the information of the next error. However, EMR Unloader IP Core can handle this by ensuring no EMR data loss during unloading process. The IP core detects the loss of EMR information by flagging the emr_error signal.

The interval between each update of the error message register depends on the device and the frequency of the error detection clock.

Table 114.  Estimated EMR Update Interval in Intel® Arria® 10 Devices
  • Speed grade 1: N=1, 2 or 4.
  • Speed grade 2 and 3: N=2 or 4 only.
Variant Density EMR Update Interval (ms)
GX/SX 160 / 220 0.28
270 / 320 0.28
480 0.41
570/ 660 0.54
GX/ GT 900 / 1150 0.55