Introduction review to of Microcontrollers ECE Senior Design 9 February 2017
Popular Microcontrollers • 8051 – Intel then Everyone (8-bit old ) • PIC – Microchip (8, 16 & 32bit) • AVR – Atmel (8 & 32bit) • MSP430 – TI (low power 16-bit) • ARM Cortex – ARM Limited (32 bit) • 68HCSxx – Motorola/freescale-NXP ( old ) • PSoC – Cypress (M8C, 8051,ARM) • Nios II / MicroBlaze – Altera / Xilinx (sc) Blue = commonly used in Senior Design
Microcontroller Application Requirements • Microcontroller and Support Circuitry • Power Supply • Application Software • User Input/Output and Device Interfaces
Features found in Microcontrollers • Central Processor (8, 16 or 32bit) • Reset Control (Power-on, Brown out, Watchdog, Stack Overflow) • Internal Oscillators and PLLs (2-Speed CLK, RTC) • Program Memory (Factory Mask, OTP, EPROM, Flash) • Static RAM Memory (Volatile Data Storage) • EEPROM Memory (Non-Volatile User Configuration / Calibration) • GPIO Pins • Timers • Interrupts (Internal, External) • Parallel Bus Interfaces • Serial Interfaces (UART, I2C, SPI, USB) • Analog input and output (ADC, DAC, PWM, Comp, Op Amp, Cap Sense) • Dedicated Logic • Power Management • In-Circuit Programming and Debug (self reprogramming)
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