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ISRO EC 2018:Digital Circuits & Microprocessor Booster Quiz 4
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Question 1
The functionality implemented by the circuit below is
Question 2
Below figure shows the memory circuit of 8085 processor, answer the following questions: What is the total size of the memory (in bytes) in the circuit?
Question 3
An I/O device is interfaced to an 8085 microprocessor. To select the I/O device in the I/O address range A8H-B9H, the chip select CS is to be connected to which output of the decoder?
Question 4
Consider the figure given below.
The following instructions are executed.
IN 01 H
XRI C2 H
RAL
OUT 10 H
What is the output at port 10H?
Question 5
Consider the figure given below
The maximum memory can be addressed by the circuit is ______ bytes.
Question 6
A state diagram of the finite state machine is described in figure below.
The total number of distinct states in the state machine are __________.
The total number of distinct states in the state machine are __________.
Question 7
Race around condition is occurred in J-K……….
Question 8
Two D-flip flops, as shown below, are to be connected as a synchronous counter that goes through the following Q1Q0 sequence
00 → 01 → 11 → 10 → 00 → ….
The inputs D0 and D1 respectively should be connected as
00 → 01 → 11 → 10 → 00 → ….
The inputs D0 and D1 respectively should be connected as
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Jul 17ESE & GATE EC
