8085: Timing Diagram Of Lhld Instruction In

, it decodes the instruction and realizes it needs a 16-bit address.

: Goes high during the first T-state ( T1cap T sub 1 ) of every machine cycle to latch the lower address ( Higher Address Bus ( Timing Diagram Of Lhld Instruction In 8085

: The processor increments the address by 1, reads the next byte, and stores it in the H register . , it decodes the instruction and realizes it

(H)←[[adr+1]]open paren cap H close paren left arrow open bracket open bracket a d r plus 1 close bracket close bracket (Content of memory address moves to H) The processor fetches 2Bh

To visualize the diagram, consider the following behavior of the system bus during these 16 T-states:

: The PC places the address on the bus; ALE latches it. The processor fetches 2Bh . In T4cap T sub 4

Increments the address by 1 and reads data into the . 3. Signal Behavior in the Timing Diagram