SPRUJ52C june 2022 – july 2023 AM69 , AM69A , TDA4AH-Q1 , TDA4AP-Q1 , TDA4VH-Q1 , TDA4VP-Q1
If the TLB has a chain enabled by writing a non-zero chain value, then the TLB lookup will continue for the transaction using the chained TLB number. There is a latency penalty to resume the lookup at the chained TLB, but it allows more TLB resources to be used for virtIDs that might need more translations. If a TLB misses and has a chain value of zero then the overall result is a miss. Any TLB logs are always applied to the original TLB of the chain, and not the chained TLB.
TLB chaining can be defined in the PVU_CHAIN_j[11:0] CHAIN register bitfield.