Manish Karle

Interrupt Response time of MC9S12XDP512

Discussion created by Manish Karle on Jul 19, 2007
Latest reply on Jul 19, 2007 by MIKE YETSKO
We tried giving 5v TTL pulses on Interrupt Pin No.64 of MC9S12XDP512 controller.We observed that beyond 50khz of input frequency ,the controller was unable to recognize interrupts.Could you tell us the maximum frequency of the input that can be correctly identified as an interrupt and the response time of the interrupt module of the above controller.Our expected input frequency range is 18khz-240khz.Is there other way for the above controller to measure this frequency range.