I designed my board which is based on SABRE-SDB.
I saw the this problem both on my board and on SABRE-SDB.
I have a problem that SABRE-SDB is not progressed on a normal Start-up Sequence as Figure 6. Default Start-up Sequence in PF0100 datasheet at times.
I captured in normal Start-up and in unusual Start-up using oscilloscope.
At this time,it is turned on the D1(LED), but is turned off the D2(LED) on SABRE-SDB.
Please let me know what is the problem? and How to do debug?
< Normal Start-up >
< Unusual Start-up >