Which timer has both options of prescaler and Postscaler?

Timer2 is an 8-bit timer with a prescaler, a postscaler, and a period register. Using the prescaler and postscaler at their maximum settings, the overflow time is the same as a 16-bit timer.

What is the highest prescaler value supported in timer 2?

The TImer2 module is an 8-bit timer/counter with the following features:

  • 8-bit timer/counter.
  • Readable and writable.
  • Software programmable prescaler/PostScaler upto 1:16.
  • Interrupt on overflow from FFh to 00h.

What is T1CON register?

It can operate as a Timer, or as a synchronous/asynchronous counter. To set-up and control the Timer1 module, there is a dedicated control register named T1CON. Accessing this register will have a result on the operation of the Timer1 module. Setting up and accessing the Timer1 module.

What is the use of prescaler in Timer0?

The purpose of the prescaler is to allow the timer to be clocked at the rate a user desires. For shorter (8 and 16-bit) timers, there will often be a tradeoff between resolution (high resolution requires a high clock rate) and range (high clock rates cause the timer to overflow more quickly).

What is prescaler and Postscaler in timer?

A prescaler is an electronic circuit used to reduce a high frequency electrical signal to a low frequency by integer division. Postscaler: A circuit that slows the rate of the interrupt generation(or WDT reset)from a counter/timer by dividing it down.

What do you understand about prescaler and Postscaler explain in details about both terms?

Prescaler divides the input pulse before the counter and the post scaler divides the output of the counter, both effectively increasing the range of the counter.

What is Postscaler in timer?

Postscaler: A circuit that slows the rate of the interrupt generation(or WDT reset)from a counter/timer by dividing it down.

What is the crystal frequency fed into the timer?

f/12
2. What is the frequency of the clock that is being used as the clock source for the timer? Explanation: The frequency of the clock source for the timer is equal to f/12(where f is the frequency of the crystal).

Which register is used to check the timer 1 overflow?

TCON is an 8-bit control register and contains a timer and interrupt flags. 1 = Timer1 overflow occurred (i.e. Timer1 goes to its max and roll over back to zero).

How do you calculate timer prescaler?

Selecting a prescaler ratio of 1:128 gives the following interrupt period (with Fosc/4 or 4MHz/4 = 1MHz) and using the maximum overflow from Timer 0. This is the period of time for each count in Timer 0 i.e. This is the number of counts required after which the interrupt is generated.

What is the value of prescaler tmr1 in t1con?

Prescaler = 1 (It is based on T1CKPS1 – T1CKPS0 bits in T1CON Register) TMR1 = 0. (My TMR1’s value will be 0) Apply this values to that above formula. Count = 42.1875 (approximately 42).

What is the prescaler rate of timer1?

‘ In this example, Timer1 is configured as a timer with the prescaler rate 1:8. Every time ‘ TMR1H and TMR1L registers overflow occurs, an interrupt will be requested. main:

Is there A prescaler for the watchdog timer?

Note: There is only one Prescaler available which is mutually exclusively shared between the Timer0 module and the Watchdog Timer. A Prescaler assignment for the Timer0 module means that there is no Prescaler for the Watchdog Timer and vice versa.

How does the tmr1 function of the t1con Register?

It counts pulses supplied to the PC0/T1CKI pin and is incremented on the pulse rising edge on the external clock input T1CKI. If the control bit T1SYNC of the T1CON register is cleared, the external clock inputs will be synchronized before they reach the TMR1 register pair.