MICROPROCESSOR AND MICROCONTROLLER

INTRODUCTION TO MICROPEOCESSOR

MODEL OF MICROPROCESSOR

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

When pins are configured as an output (i.e. logic 0), then the single port pins can receive a current of?

A	5mA
B	8mA
C	10mA
D	15mA

Explanation:

Detailed explanation-1: -When pins are configured as an output (i.e. logic 0), then the single port pins can receive a current of? Explanation: When pins are configured as an output (i.e. logic 0), then the single port pins can receive a current of 10mA. 10.

Detailed explanation-2: -0x01 is a hexadecimal command. If we translate it to binary it becomes 00000001. This command is written to 8051 microcontroller Port-1.

Detailed explanation-3: -What are the contents of the IE register, when the interrupt of the memory location 0x00 is caused? Explanation: When interrupt of 0x00 is caused (the reset interrupt) then all the other interrupts will be disabled or the contents of the IE register becomes null.

Detailed explanation-4: -It is used for both address and data. When connecting an 8051/31 to an external memory, port 0 provides both address and data. Port 1 is used as input and output. Upon reset, port 1 is configured as an input port.

There is 1 question to complete.