Exercise: The 8051 Microcontroller

Questions for: The 8051 Microcontroller

Microcontrollers often have:
A:
CPUs
B:
RAM
C:
ROM
D:
all of the above
Answer: D
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The last 96 locations in the internal data memory are reserved for general-purpose data storage and stack.
A:
True
B:
False
C:
D:
Answer: B
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The I/O ports that are used as address and data for external memory are:
A:
ports 1 and 2
B:
ports 1 and 3
C:
ports 0 and 2
D:
ports 0 and 3
Answer: C
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Both registers TL0 and TL1 are needed to start Timer 0.
A:
True
B:
False
C:
D:
Answer: B
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An alternate function of port pin P3.4 in the 8051 is:
A:
Timer 0
B:
Timer 1
C:
interrupt 0
D:
interrupt 1
Answer: A
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