Now that we have a display that can show four digits, we want to use it from our MiniRISC…

Now that we have a display that can show four digits, we want to use it from our MiniRISC processor. We want to access it similarly to the LEDs, with moving data into a given address. Your task will be to answer the questions and thus design the interface for the display.

(a) For each digit, we need a functional component into which the value to be shown (a 4-bit binary number, called DATA, it comes from the CPU) can be loaded, and it stores it. What is this functional component? Draw it for digo! (b) As you remember, we can select the peripherals with their address. For example, the address of the LEDs is 0x80. For the 7 segment display, we will use the address OxCO for digo, 0xC1 for dig1, etc. If the address(7:0) from the processor is known, with which component can we determine that this address equals to the address for digit 0? Draw it!
(c) Now to connect everything: we know that the processor wants to load a value into digo when it asserts a WRITE signal and the ADDRESS is OxCo. So complete the schematic: connect the ld signal of the component drawn in (a) so it only loads when we write to the given address!

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