Question: Question 2 (15 marks) Figure 3 shows how to use the 74ALS138 3 to 8 lines decoder to decode an 8-bit I/O address into 2

 Question 2 (15 marks) Figure 3 shows how to use the

Question 2 (15 marks) Figure 3 shows how to use the 74ALS138 3 to 8 lines decoder to decode an 8-bit I/O address into 2 ports. a) Is memory-mapped or isolated I/O used in Figure 3? Why? (4 marks) b) Is fixed port or variable port address is used in Figure3? (4 marks) c) Show how to obtain the address of each port. (7 marks)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!