10-04-2017, 08:24 PM
Microprocessor and microcontroller interview question
1. What is a microprocessor?
This program is managed by semiconductor device (INFRARED) that extracts,
decode and execute instructions.
2. What are the main components of a microprocessor?
The main components and microprocessor units ALU, an array of registers
and the control unit.
3. What is the bus?
The bus is a group of conductive lines, which carries data, address and control
Signals.
4. Why is bi-directional data bus?
The microprocessor is extracting the data read from memory or input devices
for treatment and after treatment he must keep a record of data in memory or output
devices. Thus, the data bus is bidirectional.
5. Why is bi-directional data bus?
Address identification number used for microprocessor
define or access memory location or i/o device. This output signal
from the CPU. So the address bus is unidirectional.
6. determine the machine cycle?
The machine cycle is defined as the time required to complete the operation one
access to input/output, memory or recognition of the outer query. This cycle
can consist of t-5:57 States.
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7. determine the T-State?
T-status is defined as a unit of the operations are performed in one cycle
Period. These units are the internal States are synchronized with the system clock signal, and
Each t-State is exactly equal to one clock period.
8. What is the cycle of the team?
Sequence of operations that the CPU should run time
command execution is called looping verb. Each cycle training
Processor contains a number of cycles of the machine.
9. What is the sampling and looping?
The team is divided into the sample loop and execute the sample cycles.
The cycle is to bring additional code from memory is to execute a loop.
decode the instructions and carry out the work prescribed in the regulations.
10. a list of the flags of the 8085?
There are five flags in 8085. They that flag sign, flag of zero, the subsidiary transfer
the parity flag, the flag and the flag of the transfer.
Reference: http://seminarsprojects.net/Thread-micro...z3JmV9iD1E