SPRZ455D december 2020 – june 2023 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
ADVANCE INFORMATION
C7x SE: SE Can Hang on Page Fault/UMC Error Occurring During SEBRK
When SE receives an error response from either the uTLB (page fault) or from UMC (2-bit error, addressing error, permissions error, etc.) for an active tag it halts execution of SE's fetching FSM. The final step in handling an SEBRK is to restart execution of that same FSM.
If both of these events occur with specific timing, then SE will not properly restart execution of the fetching FSM and SE will hang. This will result in the C7x CPU hanging on the next SE reference.
Once hung, the only resolution is to reset the C7x corepac.