In reply to Sundar Raman A:
Hi pkoti0583,
One of the scenario where we can use it the rsp.
Let’s say in the case of I2C Slave device, If we are driving stimulus from our Master Driver, We can wait for the ACK/NACK From slave Device.
After Driving address, One can wait and drive data if and only if we have rsp as ‘0’(Ack). If response has been received as ‘1’ from I2C Master Driver,stop bit can be driven in the next transfer.
Let me correct if I am having different understanding.