UNIT 8 MPMC

8051 has _______ no of addressing modes.

• 5

• 6

• 4

• 3

The various ways of accessing data from register, or memory is called ____

• Programming

• Instruction Set

• Addressing Mode

• Assembly Language

XRL A,40H is an example of ____ addressing mode in 8051.

• Immediate

• Direct

• Indirect

• Register

The immediate data must be processed by the sign________ in 8051

• %

• *

• #

• &

In indirect addressing mode _____ & _____ registers are used to point the data

• A & B

• R0 & R1

• A & R0

• A & R1

The addressing mode in which the data is given as the part of instruction is _______

• Immediate

• Direct

• Indirect

• Register

Which of the following comes under indexed addressing mode?

• MOV 30h, @R1

• MOVC @A+DPTR,A

• MOV A,R0

• MOV @R0,A

In Indexed addressing mode the source or destination address is the sum of base address and ________ register

• B

• R0

• DPTR

• A

What does the symbol '#' represent in the instruction MOV A, #55H?

• Direct

• Indirect

• Immediate

• Indexed

To access the External memory ___________ addressing mode is used .

• Direct +F321:J321F321:K321F321:J321F321:I322F321:I321

• Indirect

• Immediate

• Indexed