Device Family: Intel® Stratix® 10 TX

Intel Software: Quartus Prime Pro

Type: Answers

Area: Intellectual Property

Last Modified: July 01, 2019
Version Found: v19.2
Bug ID: 1507271198. 1507239070

Why does the register csr_sysref_singledet not get cleared after SYSREF detection in the JESD204C IP?


Due to a problem in the Intel® Quartus® Prime Pro Edition software version 19.2, in a single SYSREF generation subclass 1 system, the JESD204C IP will not enter the user phase due to it waiting for csr_sysref_singledet deassertion. 


To work around this do the folowing :

1. After SYSREF pulse generation, assert csr_cgs_bypass_sysref to enter user phase manually.

 2. Send another SYSREF pulse 

This problem is scheduled to be fixed in future release of the Intel® Quartus®  Prime Pro Edition software.