An $8085$ microprocessor operating at $5 \; \mathrm{MHz}$ clock frequency executes the following routine.
$\begin{array}{lll} {\text{START:}} & \text{MOVE} & \text{A,B} \\ & \text{OUT} & \text{55H} \\ & \text{DCR} & \text{B} \\ & \text{STA} & \text{FFF8H} \\ & \text{JMP} & \text{START} \end{array}$
- Determine the total number of machine cycles required to execute this routine till the JMP instruction is executed for the first time.
- Determine the time interval between two consecutive $\overline{\mathrm{MEMW}}$ signals.
- If the external logic controls the READY line so that three WAIT states are introduced in the $I/O$ WRITE machine cycle, determine the time interval between two consecutive $\overline{\text{MEMW}}$ signals.