Welcome in the forum, Patrik.
What do you want to do in that 80 ms? Go ahead and do it, then check again for transmission completed.
Thanks Bob for Reply.
I was calling mentioned I2C API in an structured software functions. I was passing address of the local buffer to receive I2C message. Now I am going to implement with Global buffer. So that message will be stored & I can used it later point of time.
In that 80ms I want to listen messages on UART also.
Thanks again :)