Microprocessors - Engineering

Q1:

Consider the instructions
  1. MOV M, B
  2. OUT 4
  3. LDAX
Which of the above require memory write cycle?

A 1, 2, 3

B 1 and 2 only

C 1 and 3 only

D 2 and 3 only

ANS:C - 1 and 3 only

No answer description is available.