You are required to build a controller for a simple security system. The controller contains the following components: 1) 3x4 keypad (0.9, *,#) 2) PPI to interface the keypad 3) 8254 timer (to generate delay and the alarm signal ) 4) Sensors on the door to generate interrupts 5) 8259 interrupt controller When the user press * the user then have to enter 4 digit code , if the code is correct then the user have 5 seconds to exit the house (if the door is still open after that the alarm will go on) . If the door is open and the system is active a hardware interrupt will be generated, and the interrupt will cause the 8254 timer to generate a low frequency square wave to a speaker to generate the alarm. Then the user have 5 seconds to press # and enter the 4 digit code if the code is correct the system will be turned off otherwise the frequency of the alarm will get higher. What you should do 1. Deliver a schematic as an image file or PDF showing how all the components are interconnected. 2. Write the assembly code that achieves the desired functionality. i need Assembly code plz :/