In the timer mode, the internal machine cycles are counted. So this register is incremented in … See more

In the counter mode, the external events are counted. In this mode, the timer register is incremented for each 1 to 0 transition of the external input pin. This type of transitions i… See more

TMOD(Timer Mode) is an SFR. The address of this register is 89H. This is not bit-addressable. Now, let us see the circuit that controls the running of the timers. In the followin… See more

To configure the Timer0 as 16-bit event counter and Timer1 as 8-bit auto reload counter, we can use the bit pattern 0 0 1 0 0 1 0 1. It is equivalent to 25H. If we want to program th… See more

The Mode 0 operation is the 8-bit timer or counter with a 5-bit pre-scaler. So it is a 13-bit timer/counter. It uses 5 bits of TL0 or TL1 and all of the 8-bits of TH0 or TH1. In this exampl… See more