SPRZ455D december 2020 – june 2023 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
ADVANCE INFORMATION
STOG: Flushing Gasket while there is a write transaction in
flight can result in dropped write responses
Flushing the Slave Timeout Gasket while there is a write transaction in-flight can result in some auto-generated write responses (by the gasket) to not be generated. The in-flight write transaction must be accepted by the gasket, but not yet progressed fully through the gasket to the destination side interface. The end result is that a Master IP may be waiting on write responses which are dropped and never returned, thus hanging the Master IP. The gasket's internal scoreboard is also corrupted as a result.
By flushing the gasket, Master IPs that send write transactions through the gasket can hang, breaking the FFI System Solution. The gasket never reaches the idle state and thus cannot be clock stopped.
STOG should be left in disabled/bypass mode.