Question: Homework # 6 Scanning a Keyboard Consider the keyboard shown in Figure 1 . This contains eight digital lines and sixteen switches connected to two

Homework #6 Scanning a Keyboard
Consider the keyboard shown in Figure 1. This contains eight digital lines and sixteen
switches connected to two digital ports. Using this design, answer the following
questions.
Figure 1 Keypad schematic
1. What is the row mask?
2. What is the column mask?
3. Generate the keycodes for this design
4. Generate the scancodes for this design
5. Write a MIPS assembly implementation of the keyboard scanning function. You
may assume that the registers $A0 and $A1 contain the address of the keycodes
and scancodes

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