PIC 16FA is a microcontroller manufactured by Microchip Inc. You can see its specifications and download the datasheet here. PIC16F87XA 28/40/Pin Enhanced Flash Microcontrollers Devices Included in this Data Sheet: • PIC16FA • PIC16FA • PIC16FA • PIC16FA. Learn about PIC16FA PIC series microcontroller with its a detailed overview of PIC16FA features with its PDF datasheet to download.

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The RAM block bytes in size is not one single datashedt block of memory, but is rather divided into four banks of bytes each. Capture2 input, Compare2 output, PWM2 output. Keep that in mind while choosing the project name and location.

Capture1 input, Compare1 output, PWM1 output. The IDE is an environment which integrates different simulation tools and compilers to provide a single window solution to development and debugging.

Before jumping into the implementation, a couple of settings are to be made so that we can observe the animation sequence. Our publications will be refined and enhanced as new volumes and updates are introduced.

Datasheet PIC 16f877A

Set the breakpoint near the nop in line 10, and hit the run button. The clocking signal derived from the crystal is internally divided by four. Go through the explanation of each and every instruction. A micro-controller, in simple words, is a miniature computer with a central processing unit and some peripherals integrated into a single integrated circuit package. The concept is from processor architecture, since the external memory access which will be much slower can be a bottleneck to the high speed operations within the processor.

Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. A refresher of new C coding features included in C99 and C11 for embedded system developers. Parallel Slave Port data. Leave blank if you are a human. External clock source input. It was further migrated to wordpress and then this page.


As it can be seen from the pin diagram, the port pins are bi-directional and and most of them are multiplexed in function. To activate the colour coding that will highlight keywords, type in something and save the file with the. These bits are set or cleared according to the device logic.

Thusat the next execution cycle, the instruction fetched is the movlw at To set a breakpoint, double click in the grey area near the line we need to breakpoint.

The blocks are identified below. You May Also Enjoy A refresher of new C coding features for embedded system developers 2 minute read A refresher of new C coding features included in C99 16t877a C11 for embedded system developers. Again, the immediate next PC 08 is pushed into the stack.

PIC16FA-I/P Technical Data

To switch off the watchdog timer, uncheck the configuration bits set in code check box indicated in the figure and select the option from the drop down menu. Most likely, the person doing so is engaged in theft of intellectual property.

Since a very detailed explanation about the instructions is available in the datasheet, we will be focusing more on how to get things done using the 35 instructions.

Now, we are going into the actual program writing process. Normal execution continues till 10 where the return instruction pops 03 from the stack. Microchip is willing to work with the customer who is concerned about the integrity of their code.


Scratch pad memory registers are high speed memory registers which are integral to the processing center architecture. Along with the data holding port registers, there is a set of configuration registers associated with the ports. Next step is to define the simulator that we will be using.

This instructions define the architecture of the controllers central processor in a macro scale. After the first program, we are now all set to try out more interesting stuff.

A complete listing of the execution times can be found in page of the data sheet.


Once the processor is reset and ready to go, the program counter, which is simply a counter that acts as a pointer to the program instructions points to the initial location of the program memory. These are the TRIS registers that configure the ports to be in input or output mode. There are 6 ports for PIC 16fa. This 14 bit encoded binary contains the instruction, the scratch pad memory location to be used and the literal value 0xff.

The temperature sensors measure the room temperature and gives it as input to the microcontroller through the ports. Those registers associated with the core functions are described in detail in this section. The Reference Manual should be considered a complementary document to this data sheet and is highly recommended reading for a better understanding of the device architecture and operation of the peripheral modules.

The PIC 16fa can generate its own clock from a piezo crystal connected to its specific pins.