For the problems below assume that the HC12 is operating in expanded wide mode.

1. What do you need to look for on an HC12's address and control lines to determine if an HC12 wants to read a byte from address 0x0746?
2. What do you need to look for on an HC12's address and control lines to determine if an HC12 wants to write a byte to address 0x0747?
3. On the figure below, for what address range will Y4 be selected? Will it be an input or an output, or an input-output port?

   

4. Use a 74HC374 (for address deumultiplexing), a 74HC138 and possibly some multiple-input NAND gates and some inverters to create a chip select for an output port which will be selected for the address range 0x0600 - 0x06FF.