To get analog output we have to use external Digital-to-Analog Converter (DAC). There are no analog outputs in PIC Microcontroller. These timers work according to the selected modes. Timer0 and Timer2 are of 8-bits while the Timer1 and Timer3 are of 16-bits, which can also be used as a counter. PIC microcontroller can have up to four timers (depending upon the family) Timer0, Timer1, Timer2 and Timer3. Timers and counters are important as timers can tell the time and count. PWM Mode: This mode provides a 10 bit resolution pulse and duty cycle that is programmable.Compare Mode: It works same as an analog comparator, which means that when timer 1’s value reaches some reference value it will give an output signal.Capture Mode: In this mode time is captured when a signal is arrived, or we can say that, when the CCP pin goes high it captures the value of the Timer1.Port E:It is a 3-bit port which is used as the additional feature of the control signals to the A/D converter.Ī CCP module works in the following three modes:.Port D:This 8-bit port, unlike Port A, B and C is not an input/output port, but is used as acts as a slave port for the connection to the microprocessor When in I/O mode Port D all pins should have Schmitt Trigger buffers.Port C:It is also an 8-bit port and can be used as both input and output port which is determined by the status of the TRISC register.Moreover in input mode four of its bits are variable according to the interrupt signals. This port also can be used as input and output. ![]() The status of TRISA register decided whether it is used as input or output port.
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