35. What are the different types of ADC The different types of ADC are successive approximation ADC, counter type ADC, flash type ADC, integrator converters and voltage to frequency converters. UNIT-IV MICROCONTROLLERS 8051 TWO MARKS 1. What is mean by microcontroller? A device which contains the microprocessor with integrated peripherals like memory, serial ports, parallel ports, timer/counter, interrupt controller, data acquisition interfaces like ADC, DAC is called microcontroller. 2. Explain DJNZ instruction of Intel 8051 microcontroller? a) DJNZ Rn, rel Decrement the content of the register Rn and jump if not zero. b) DJNZ direct, rel Decrement the content of direct 8- bit address and jump if not zero. 3. State the function of RS and RS bits in the flag register of Intel 8051 microcontroller? RS1, RS- Register bank select bits RS, RS- Bank Bank 0 Bank 1 Bank 2 Bank 3
