Microcontroller 2nd Assignment

ASSIGNMENT-2

1. List the JUMP and CALL instruction. Describe Conditional JUMP Instruction

1. Write a program to read 100 bytes of data from P1 and save the data in external RAM starting at 5100H Location.

1. Differentiate the following terms:

(I)          SJMP VS LJMP

(II)        ACALL VS LCALL

(III)      Reading input pins vs Port latch

1. How many addressing modes are available in 8051? Explain each one with example.

1. Explain the following terms:

(i)                  MOVX A,@DPTR

(ii)                MOVC A,@A+DPTR

(iii)              MOV A,@R0

(iv)               BIT directive

(v)                 EQU directive

1. Elaborate the term reading input pins vs. port latch.

1. What is read-modify-write feature in 8051? Enlist the instructions used for this purpose.

1. Enlist & explain different addressing mode in 8051 with suitable example.

1. Write a program to get the x value from P1 & send x² to P2, continuously.

10  Write a program to convert:

(i)          Hexadecimal to decimal

(ii)        Packed BCD to two ASCII numbers