Timers And Counters

Use these products for monitoring quadrature encoders event counting period measurement pulse generation pulse train generation two edge separation measurement and more.

Timers and counters.

Since the 8051 follows an 8 bit architecture each 16 bit is accessed as two separate registers of low byte and high byte. A timer is an application of the counters where a certain signal with a fixed frequency hence period is counted to record the time. Set a silent timer clock or choose a sound. Counters and timers in 8051 microcontroller contain two special function registers.

Meaning arduino moves from one instruction to another instruction for every 62 nano second. Tmod timer mode register and tcon timer control register which are used for activating and configuring timers and counters. Both timer 0 and timer 1 are 16 bit wide. Timer mode control tmod.

A timer uses counter which counts at certain speed depending upon the clock frequency. Lower 4 bits are used for control operation of timer. Timer online with alarm. Tmod is an 8 bit register used for selecting timer or counter and mode of timers.

The 8051 has two timers timer 0 and timer 1. They can be used as timers or as event counters. Counters and timers provide timing and digital i o. In arduino uno it takes 1 16000000 seconds or 62nano seconds to make a single count.