I'm using an ADSP-SC589 and sometimes on power-ups, the processor doesn't seem to enter normal program execution. I managed to catch it in debug mode and observed the following registers:
SP = 200BF3B8
CP15 c5 DFSR = 00000084 (Ext = 0, WnR = 0, Domain = 8, Status = 04)
CP15 c5 IFSR = 00001000 (Ext 1, Status = 0)
So the stack pointer is pointing to memory in L2 and status 04 = Instruction Cache Maintenance Fault. I have a text file of all the other registers too and can upload if it helps.
This issue is intermittent and I'm not sure if it's a hardware or software problem. Any help in trying to understand where to start debugging this would be appreciated.