PIC16F690 PDF

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Yes 3. Following are the main functions of PIC16F Timer Timers are very useful for creating a delay in the running function. PIC16F comes with three timers where two are 8-bit and one is bit timer that can be configured both ways i.

The former is used to create delay and increments the instruction cycle while later is used to count the number of intervals in specific running function and increments the rising and falling edge of the pin. In-Circuit Serial Programming In-Circuit Serial Programming is another valuable feature incorporated into the device that gives the flexibility to program the controller after its installation in the relevant project.

Watchdog Timer PIC16F comes with built-in timer called watchdog timer that can be configured with programming. It is mainly used to reset the controller when the running program gets stuck in an infinite loop. This timer prevents the device from any malfunctioning and provides a preventive measure by resetting the device before it goes to any invalid software glitch.

More often than not, watchdog timer acts like a countdown timer that starts from and gradually goes down to zero. Sleep Mode Power saving sleep mode is another valuable function added in the chip that generates a low current power down mode.

The sleep mode can be abandoned using an interrupt, watchdog timer or external reset. You can download this compiler online from the Microchip Official Site. The code we write in the compiler generates a hex file that is transferred to the PIC Microcontroller. You need a burner to transfer the compiled program to the controller. PICKit3 is widely used for this purpose. RAM memory stores the information temporarily and is known as a volatile memory or data memory that is mainly dependent on the power supply as it removes the stored information as the power supply is removed.

Registers play a vital role in the controller that are the data holding places and can hold storage address, instruction and any kind of data containing bit sequence or individual characters. The data memory, implemented as static RAM, is divided into four banks and contain two types of registers called General Purpose Registers Special Function Registers General purpose registers store any modified or random value in the processor, and are organized as 8 x in RAM and accessed by File Select Register.

While Special function registers mainly control the peripheral functions and occupy the first 32 locations of each bank. W Register. This register helps in switching between the banks. PIC16F Block Diagram Block diagram is very helpful to have a deeper look at how different pins and components operate and attach to each other. The following figure shows the block diagram of PIC16F

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