I have a $8$ MHz $8051$ by ATMEL. It has a machine cycle of $16$ clocks. I would like to use Timer $1$ as a timer to generate a square wave which has a period of $120$sec$.$

$1.$ Find the delay count and the base number.

$2.$ What values are loaded into TL$1$ and TH$1.$ Draw the registers.

$3.$ What value should be loaded into TMOD register? Draw the register.

$4.$ Write an interrupt driven assembly program to generate the wave at the pin P$1\mathrm{.}4$ of the $8051.$