I know this will be very specific but I am just very cruious about the fact that, In the board mentioned in the title, which is basically Sabre for Smart Devices layout file, for the DDR signals, a via named C008-008TENTED-DDR is used, which is a modified version of C008-008TENTED without the bottom soldermask defined.
Now when one goes to the constraint manager in search for this via, one cant find anywhere this via is assigned to. None. Not even going to "Add Connect" mode on the exact via (C008-008TENTED-DDR) and it doesnt show up in the via drop down menu.
I did go through extracting and searching thoroughly. So can some hardware expert please demistfy the usage of this ninja via?