I am using FS6513CAE with MPC5777C in the project. The pin INTB is connected to the NMI pin of MCU. The INTB is generating an interrupt when IO_0 undergoes state change(Verified on oscilloscope). The SIU_EISR register doesn't show the NMI0 bit getting changed(Stays 0- No NMI event has occurred on the NMI input of Core0). So, MCU is not acknowledging the interrupt & ISR is not getting hit obviously. IVOR1 handler is present in the project.
Current configurations done on MCU for the NMI pin-
1. GPIO pad 213 configured as NMI alternate functionality, pin direction is input only.
2. SIU.DIRER.B.NMISEL8= 0; /*Routing interrupt as NMI (IVOR1 handler) to Core0*/
3. SIU.IFEER.B.IFEE_NMI8= 1; /*Enabling the falling edge event for Core0*/
Have I missed any part of the configuration; because of which, I am not getting interrupt acknowledged in the SIU_EISR register???
Thanks in advance.