Top 86 Family Interview Questions :: ALLInterview.com http://www.allinterview.com Top 86 Family Interview Questions en-us write an assembly code which can call function in a loop with al valu http://www.allinterview.com/showanswers/35357.html xor ax, ax loop1: call foo inc al cmp ax, 10 jb loop1 How do you detect if two 8-bit signals are same? http://www.allinterview.com/showanswers/20124.html By using XNOR gate if the signals are same then only the output will be one otherwise not. Explain RC circuit?s charging and discharging? http://www.allinterview.com/showanswers/20127.html Charging a Capacitor: The voltage across the capacitor is not instantaneously equal to that of the voltage across the battery when the switch is closed. The voltage on the capacitor builds up as more and more charges flows onto the capacitor What is the difference detween ISR & function call http://www.allinterview.com/showanswers/63620.html in isr there is no return value but in function call there is return value What are the different addressing modes in 8085? http://www.allinterview.com/showanswers/10600.html Various formats of specifying the operands are called addressing modes. 1) Direct, (ex: IN/OUT Port#) (# - port number) 2) Immediate, (ex: MVI R,Data) (R-register) 3) Register, (ex: MOV Rd,Rs) (Rd- destination Register, Rs- source Register) 4) Which type of architecture 8085 has? http://www.allinterview.com/showanswers/10591.html 8085 has von neumann architecture it was derived after the name of mathematician john von neumann. its having 16 address bus and 8 bit data bus. it can access 2^16 individual memory location. Explain the working of a binary counter? http://www.allinterview.com/showanswers/20128.html binary counter with the number of bits available. initiallly counter is set to zero. then bits are checked against logic 1 or 0,if they are either logic 1 or 0,then counter is incremented. What are the different flags in 8085? http://www.allinterview.com/showanswers/10604.html 8085 microprocessor has a set 5 flip flops which serves as the status flags & they are : Sign Flag ,Carry Flag, Auxillary Carry Flag, Parity Flag & Zero Flag what do you mean by embedded system? http://www.allinterview.com/showanswers/59406.html It's a combination of software and hardware Which are embedded by Kiel compiler.It 1s a device that do a specific task. Design any FSM in VHDL or Verilog? http://www.allinterview.com/showanswers/20126.html -----By RAHUL SINGHAL---- ----This is the code of a FSM that implements a toll booth - ----controller LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; ----using all functions of specific package--- ENTITY tollbooth2 IS PORT (Clock,car_s,RE 7. What are tri-state devices and why they are essential in a bus or http://www.allinterview.com/showanswers/60960.html In a multiplexed bus system, many devices are connected to a common bus. If 2 or more devices attempt to use the bus at the same time , then data will be lost. Thus only one one device must be allowed to use the bus at a time. O e method is t How do you detect a sequence of "1101" arriving serially fr http://www.allinterview.com/showanswers/20125.html try finite state machine logic it will definitely give the output Give a circuit to divide frequency of clock cycle by two ? http://www.allinterview.com/showanswers/20116.html any single flip flop itself is a freqency divider circuit What happens during DMA transfer? http://www.allinterview.com/showanswers/10605.html during dma transfer the processor is going with its current processes and not involved with the data transfers ,since it already released its buses the for that ... What are the different Adder circuits you studied? http://www.allinterview.com/showanswers/20120.html Half adder and full adder