1
GATE ECE 2000
MCQ (Single Correct Answer)
+1
-0.3
In the 8085 microprocessor, the RST6 instruction transfers the program execution to the following location
A
30 H
B
24 H
C
48 H
D
60 H
2
GATE ECE 1999
MCQ (Single Correct Answer)
+1
-0.3
If $$CS\;=\overline{A_{15}}\;A_{14}\;A_{13}$$ is used as the chip select logic of a 4K RAM in an 8085 system, then its memory range will be
A
3000H – 3FFFH
B
7000H – 7FFFH
C
5000H – 5FFFH and 6000H – 6FFFH
D
6000H – 6FFFH and 7000H – 7FFFH
3
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
An I/O processor control the flow of information between
A
cache memory and I/O devices
B
main memory and I/O devices
C
two I/O devices
D
cache and main memories
4
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
In an 8085$$\mu$$P system, the RST instruction will cause an interrupt
A
only if an interrupt service routine is not being executed
B
only if a bit in the interrupt mask is made 0
C
only if interrupts have been enabled by an EI instruction
D
None of the above
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