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AR# 22180

SPI-4.2 v7.3 - SnkBusErr is asserted during phase alignment

Description

In the simulation or in the device operation, during the initial phase alignment, SnkBusErr is asserted along with SnkBusErrStat, indicating DIP4 error and other error conditions. Once the core aligns (SnkOof=0), no SnkBusErr is seen.

Solution

These error conditions are expected during the phase alignment, and SnkBusErr should be ignored until the core completes the initial phase alignment, which is after PhaseAlingComplete="1."  

 

This is fixed in SPI-4.2 v8.1 Core. SnkBusErr will no longer be asserted during clock-data alignment.

AR# 22180
Date Created 09/04/2007
Last Updated 05/19/2014
Status Archive
Type General Article