I need a timer interrupt at periodic intervals. I understand that the timer will count from 0x000 to 0xFFFF before it overflows and activate the timer interrupt. However, if I need to have a longer count ie longer periodic interval. How can it be done since the count value is only 2 bytes? Besides that, if I need to specific periodic interval does it mean I have to reload the timer value with a specifc number each time the interrupt comes in?