An $8-$channel continuous A$/$D scanning module, connected with the $8-$bit CPU, is shown in the Fig. $1,$ where $74$LS$125$ and $74$LS$244$ are the tri$-$state buffers; $74$LS$138$ is the encoder; $74$LS$688$ is the $8-$bit comparator; CD$4051$ is the a single $8-$Channel multiplexer; K$0$~K$7$ are the switches. Please answer the sub$-$questions. $(12)(1)$ The switches are set as shown in Fig. $1.$ The comparator can only enable the output when the address bits A$3$~A$10$ matches the hardwired setting of switches K$0$~K$7.$ Please give the address range for the module. Also, please state the usage of the cable surrounding the $8-$channel input and further identify how to connect the switches Ks$0$ and Ks$1$ for shielding. Also give the arrangement of the remaining address bits A$0$~A$2$ for this $8-$channel continuous A$/$D scanning module. $(2)$ With the external connection as in Fig. $1,$ please identify the input type of AD$574$ operates, i$.$e$.,$ unipolar or bipolar mode. Under this connection mode and the input range, please give the resolution of AD$574.(3)$ Please explain how to initiate the A$/$D converter for the $7$th channel, how to determine the end of A$/$D conversion and how to read the results of A$/$D conversion. Each answer should be accompanied with the corresponding assembly language, with the port addresses. $($Overseas students are exempted from the assembly language.$)$