Introduction to PIC Microcontroller

1. Introduction to PIC
Microcontroller
T.Ramprakash
AP/ECE
Ramco Institute of Technology
Academic Year 2016-17 (Odd Sem)

2. Why PIC has become popular ???
• Low cost
• Wide availability
• Large user base
• Easy of availability of its supporting hardware
and software tools like assemblers, debuggers
and simulators
• Re-programming with flash memory capability
• Easy to interface with other peripherals

3. PIC - Introduction
• Peripheral Interface Controller
• Harvard architecture
• RISC Architecture
• Low end Architecture and Mid-range Architecture
• line packages and surface mount packages
• Speed (20 Mhz)
• Watch dog timer
• Brown-out protection

4. PIC - Introduction
• Power on Reset
• ROM/OTP/EPROM/ROM/Flash
• 8 level stack
• Powerful output pin control
• Up to 12 independent interrupt sources
• Direct and Indirect addressing modes
• Timers
• Serial Programming

6. PIC 16C6x Architecture
• High performance RISC CPU
• 8 bit microcontroller
• Low cost, High performance, CMOS, fully static
microcontroller
• Only 35 single word instructions
• Interrupt capability
• Eight level deep hardware stack
• Direct and Indirect addressing modes
• Power-on Reset (POR)
• Power-up Timer (PWRT)
• Oscillator Start-up Timer (OST)

7. PIC 16C6x Architecture
• Watchdog Timer (WDT)
• Programmable code-protection
• Power saving SLEEP mode
• Selectable oscillator options
• Low-power, high-speed CMOS EPROM/ROM
technology
• Fully static design
• Wide operating voltage range: 2.5V to 6.0V
• Commercial, Industrial, and Extended
temperature ranges
• Low-power consumption

8. PIC 16C6x Peripheral Features
• Three timers: Timer0, Timer1, Timer2
– Timer0 : 8-bit timer/counter with 8-bit prescaler
– Timer1 : 16-bit timer/counter with prescaler, can
be incremented during sleep via external
crystal/clock
– Timer2 : 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
• Capture/Compare/PWM (CCP) module(s)
– Capture is 16-bit, max resolution is 12.5 ns
– Compare is 16-bit, max resolution is 200 ns
– PWM max resolution is 10-bit

9. PIC 16C6x Peripheral Features
• Synchronous Serial Port (SSP) with SPI and I2C
• Universal Synchronous Asynchronous Receiver
Transmitter (USART/SCI)
• Parallel Slave Port (PSP) 8-bits wide, with
external RD, WR and CS controls
• Brown-out detection circuitry for Brown-out
Reset (BOR)
• The figure shows the block diagram of PIC
16C62A

12. PIC Working Registers
• W - Reg
• Status Register
• FSR – File Select Register
• INDF
• Program Counter
• PCL
• PCLATCH
• Eight Level Stack

13. Pipelining

14. Thank You

15. Reference
• Peatman,J.B., “Design with PIC Micro
Controllers”PearsonEducation,3rdEdition,
2004
• Furber,S., “ARM System on Chip Architecture”
Addison Wesley trade Computer
Publication, 2000