Pic16cxx instruction set

 In this presentation we can learn about basic concept of Instruction set, Byte Oriented Instructions, Bit Oriented instructions, Literal Instructions clearly.

1. MICROCONTROLLER BASED SYSTEM DESIGN “PIC 16CXX INSTRUCTION SET” V.KALAIRAJAN M.E; ASSISTANT PROFESSOR, ELECTRICAL AND ELECTRONICS ENGINEERING KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRICHY KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRI 1 1 CHY PIC16CXX INSTRUCTION SET 1

2. PIC 16CXX INSTRUCTION SET VIEWS: INSTRUCTION SET BYTE ORIENTED INSTRUCTIONS BIT ORIENTED INSTRUCTIONS LITERAL INSTRUCTIONS KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRI11CHY PIC16CXX INSTRUCTION SET 2

3. PIC 16CXX INSTRUCTION SET INSTRUCTION SET: The instruction set for PIC microcontroller consists of only 35 instructions. Some of these is instructions are byte oriented and some bit oriented instructions. The instruction set is listed in table. Byte-oriented operations (Operation done in bytes of data) Bit-oriented operations (Operation done in bit of data) Literal and control operations (Data given in instruction itself) BYTE ORIENTED INSTRUCTIONS: The byte oriented instructions that require two parameters ( for example mov f,F (W)) except the f to be replaced by the name of a special purpose register ( e.g. PORT A) or the name of a RAM variable (e.g. NUM1) which serves as the source of the operant “f” stands for file register. The F(W) parameter is the F, if the destination is to be the source register. W, if the destination is to be working register (i.e. accumulator or W register) KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRI11CHY PIC16CXX INSTRUCTION SET 3

4. PIC 16CXX INSTRUCTION SET KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRI11CHY PIC16CXX INSTRUCTION SET 4

5. PIC 16CXX INSTRUCTION SET BIT ORIENTED INSTRUCTIONS : The bit oriented instructions also expect parameters (e.g. btfsc , f, b). here “f” is to be replaced by the name of a special purpose register on the name of RAM variable. The “b” parameter is to be replaced by a bit number ranging from 0 to 7. For example Zequ 2 Btfsc STATUS, z Z has be equated to 2. Here the instructions will test the Z bit of the status register and will skip the next instruction is Z bit is clear. KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRI11CHY PIC16CXX INSTRUCTION SET 5

6. PIC 16CXX INSTRUCTION SET KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRI11CHY PIC16CXX INSTRUCTION SET 6

7. PIC 16CXX INSTRUCTION SET LITERAL INSTRUCTIONS : The literal instructions require an operand having a known value (e.g. OAH) or a label that represents known value. For example NUM equation OAH; assigns OAH to the label NUM (a constant) movl W NUM: will move OAH to the W register Every instruction fits in a sing 14 bit word. In addition, every instruction also executes in a single cycle, unless it changes the content of the program counter. These features are due to the fact that PIC microcontroller has been designed on the principle of RISC architecture. KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRI11CHY PIC16CXX INSTRUCTION SET 7

8. PIC 16CXX INSTRUCTION SET KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRI11CHY PIC16CXX INSTRUCTION SET 8

9. PIC 16CXX INSTRUCTION SET CONCLUSION: In this above presentation we can learn about basic concept of I nstruction set, Byte Oriented Instructions, Bit Oriented instructions, Literal Instructions clearly. REFERENCES: Mazidi , M.A.,“PIC Microcontroller” Rollin Mckinlay , Danny causey Printice Hall of India, 2007. Ravichandran,C ., and Arulaalan,M ., “Microcontroller Based System Design”, Suchitra Publications, Ist edition,2016. Dr.Balamurugan.C.R ., Periyaazhagar ., “Microcontroller Based System Design”, Megnus Publications, Ist edition,2016. Online wikipedia search. 9 KONGUNADU COLLEGE OF ENGINERING AND TECHNOLOGY, TRI11CHY PIC16CXX INSTRUCTION SET