8.8.3.2 Interrupt Sources

The TDES interface has one interrupt line used for standard functions and one interrupt line used to trigger any safety or security event that may occur. Both lines are connected to the Interrupt Controller. The interrupt line for standard functions is driven by TDES_IMR and TDES_ISR, whereas the interrupt line for safety/security functions is driven by TDES_WPSR flags. If one of the flags WPVS, CGD, SEQE or SWE is set, the interrupt line is asserted. In order to handle interrupts, the Interrupt Controller must be programmed before configuring the TDES.