Question: 1. What are the advantages and disadvantages of memory-mapped input/output?
2. Why does the 68000 have a synchronous interface in addition to its asynchronous interface?
3. What is direct memory access (DMA) and how is it used?
4. Explain the meaning of the following terms
a. Nonbuffered input (or output)
b. Single-buffered input(or output)
c. Double-buffered input(or output)
d. Open-loop data transfer
e. Closed-loop data transfer
f. Handshaking