SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The Transaction Error Interrupt signals that the gasket has detected an error on a transaction. The gasket returns an appropriate response to the source side, so the source will not immediately violate a safety goal, but it is assumed that something uncorrected has happened in the system. The system must treat this as a dangerous event and react accordingly. The specific response is the responsibility of the system integrator, but possibilities are discussed below. There are three possible causes of the Transaction Error Interrupt: transaction timeout, unexpected response, and command timeout. Software should query the Error Interrupt Enabled Status/Clear Register (Base Address + 0x24) to determine the cause.