Timing Diagram for STA 526AH

• STA means Store Accumulator -The content of the accumulator is stored in the specified address (526A).
• The op-code of the STA instruction is said to be 32H. It is fetched from the memory 41FFH (see fig). - OF machine cycle
• Then the lower order memory address is read (6A). – Memory Read Machine Cycle
• Read the higher order memory address (52).- Memory Read Machine Cycle
• The combination of both the addresses is considered and the content from accumulator is written in 526A. – Memory Write Machine Cycle
• Assume the memory address for the instruction and let the content of accumulator is C7H. So, C7H from accumulator is now stored in 526A

Address	Memories	Hex-code
41FFH	STA	32H
4200H	6AH	6AH
4201H	52H	52H
526AH	C7H	C7H

Timing Diagram for STA 526AH