Question: How many external interrupts does the 8051 support?
Options:
1
2
3
4
Correct Answer: 2
Solution:
The 8051 microcontroller supports 2 external interrupts.
How many external interrupts does the 8051 support?
Practice Questions
Q1
How many external interrupts does the 8051 support?
1
2
3
4
Questions & Step-by-Step Solutions
How many external interrupts does the 8051 support?
Step 1: Understand what an external interrupt is. An external interrupt is a signal from outside the microcontroller that can pause its current task and execute a special function.
Step 2: Know that the 8051 microcontroller is a type of microcontroller used in many electronic devices.
Step 3: Learn that the 8051 has specific pins designated for external interrupts.
Step 4: Identify that the 8051 supports two specific external interrupts, which are usually referred to as INT0 and INT1.
Step 5: Conclude that the total number of external interrupts supported by the 8051 microcontroller is 2.
External Interrupts in 8051 – The 8051 microcontroller has two external interrupt lines, INT0 and INT1, which can be used to trigger interrupts from external devices.
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