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The LSU transfer completion is checked through LSU_STAT_REG registers. The transaction ID read from LSU_REG6 is used to determine the index of the completion code in LSU_STAT_REG registers; the context bit read from LSU_REG6 is used to determine the validation of the completion code. The context bit toggles for each transaction, for example, for the first transfer with transaction ID = 2, the context bit = 1; then, for the next transfer with transaction ID = 2, the context bit = 0. So, only after the context bit in LSU_STAT_REG register for transaction ID = 2 toggles from 1 to 0, it indicates the second transfer complete, and the completion code is valid. Below is the example code for LSU completion checking.
