Q$4-$ Draw a schematic diagram to interface a $48-$key matrix board and six a seven segment

display using $8279($Keyboard Display interface$).$ So it can operate at $\frac{1}{0}$ port $6011$

and $62$ H $.$ If the $8279$ CLK pin is connected $102\mathrm{.}0$ MHz clock. Program the mode of

operation and set the internal clock to $204$ KHz $.$ Write procedure that read data from

FHFO buffer and procedure to display the content of All on the display on position

indicated by AL$?$