PIC Microcontroller – Care4you

PIC Interrupts

Ravinder Nath Rajotiya — Fri, 04 Sep 2020 07:12:02 +0000

PIC Interrupts Introduction: PIC16F877 has 14 interrupt sources. The following registers are used for setting the interrupt and checking the status of the interrupt. These are INTCON Register (04 registers, duplicated in each bank addresses 0Bh, 8Bh, 10Bh, 18Bh) PIE1 Register (Address 8Ch ) PIR1 Register (Address 0Ch) PIE2 Register (Address 8Dh) PIR2 Register( Address...

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PIC Memory Organization

Ravinder Nath Rajotiya — Wed, 02 Sep 2020 11:07:05 +0000

Memory Organization: The internal block diagram iPIC16F87x in figure1 shows the three memory block the program memory, EEPROM data memory and the RAM; some controller like 16C61 has only two blocks of memory program memory and data memory. As shown the program memory and the data memory use separate buses for concurrent access of these...

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PIC Instruction Set

Ravinder Nath Rajotiya — Wed, 02 Sep 2020 10:53:42 +0000

PIC Instruction Set: PIC is RISC based architecture supporting only 35 instructions. These instructions can be classified in the following categories: 1. Register File Operations: Byte oriented operations Bit oriented operations Literal and control operations 2. Based on Functions Data Transfer Operations Arithmetic Operations Logical Operations Shift and Rotate Branch and Return These instructions are...

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Internal Architecture of PIC microcontroller

Ravinder Nath Rajotiya — Wed, 02 Sep 2020 08:49:05 +0000

Internal Architecture of PIC microcontroller: The internal architecture of 8086 shows the interconnection of all important components of the controller along with its data path. Figure-1 shows the internal architecture of 16F877 microcontroller PIC16F877 architecture shows the following components: Figure-1: Internal Architecture of PIC16F877 I/O PORTS : It has five I/O ports PORT A,B,C,D,E. Port...

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PIC introduction

Ravinder Nath Rajotiya — Wed, 02 Sep 2020 08:46:02 +0000

Introduction PIC series of controller high performance, low cost RISC controllers. It is based on Harvard architecture allowing use of separate instruction and data buses. The architecture allows a typical 14 bit wide instructions word length and 8-bit data width. Being RISC controller, it supports only 35 instructions and all instructions except jump and branch...

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