SPRSP93 November 2024 F29H850TU , F29H859TU-Q1
ADVANCE INFORMATION
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Interrupts propagate to the CPU through several steps. Peripheral interrupts set the corresponding FLAG bit in the INT_CTL_REG_L_y register of a given interrupt. If the EN bit of the interrupt's INT_CTL_REG_L_y register is set, the interrupt propagates to the dynamic priority arbitration circuit. Next, the dynamic priority arbitration block and post processing block arbitrate the highest priority interrupt and assert this to the CPU on one of the two interrupt lines (RTINT or INT). Finally, the CPU chooses the highest priority interrupt line that is asserted (amongst NMI, RTINT, and INT) and begins execution of that interrupt.
The same rule is applicable to RESET. Once the CPU receives the RESET, there are no conditions to meet before reset assertion to CPU.