In this mode, the 8/16-bit data is specified in the instruction itself as one of its operand. For example MVI E, ABH: means ABH is copied into register A. Here the operand is immediately available in the instruction.
MVI E ABH
As example, if we consider instruction MVI E, ABH then it means that ABH will be moved or copied to the register E. And, as a result, the previous value of E will get overwritten.
|2000||1E||MVI E, ABH||E ← ABH|
|2001||AB||ABH as operand|
This instruction will have seven T-states as shown below.
Summary − So this instruction MVI E, ABH requires 2-Bytes, 2-Machine Cycles (Opcode Fetch and Memory Read) and 7T-States for execution as shown in the timing diagram.