Exercise: The 8051 Microcontroller

Questions for: The 8051 Microcontroller

This statement will set the address of the bit to 1 (8051 Micro-controller):
SETB 01H
A:
True
B:
False
C:
D:
Answer: B
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The special function registers are maintained in the next 128 locations after the general-purpose data storage and stack.
A:
True
B:
False
C:
D:
Answer: A
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The 8051 can handle ________ interrupt sources.
A:
3
B:
4
C:
5
D:
6
Answer: C
There are five interrupt sources for the 8051, which means that they can recognize 5 different events that can interrupt regular program execution. Each interrupt can be enabled or disabled by setting bits of the IE register. Likewise, the whole interrupt system can be disabled by clearing the EA bit of the same register.
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Data transfer from I/O to external data memory can only be done with the MOVX command.
A:
True
B:
False
C:
D:
Answer: A
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The address space of the 8051 is divided into four distinct areas: internal data, external data, internal code, and external code.
A:
True
B:
False
C:
D:
Answer: A
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