Question

3.8 Consider a 1024B memory bank composed of two 512B memory modules: one for the low byte and one for the high byte. A signal from the microprocessor, R/W’ is used to distinguish between a memory read and a memory write. The address bus from the microprocessor is 16-bit wide.

a. Determine the address lines that will be connected to each of the memory modules.

b. Determine the address lines that should be used to enable the chip select, an active low input signal for each of the memory modules.

c. Design the decoder needed to enable the memory modules if the memory space for these modules begin at address 512

Answer 1