A computer employs RAM chips of 256 x 8 and ROM chips of 1024x 8. The computer s

Question

A computer employs RAM chips of 256 x 8 and ROM chips of 1024x 8. The computer system needs 2K bytes of RAM, 4K bytes of ROM,and four interface units, each with four registers. A memory-mappedI/O configuration is used. The two highest-order bits of theaddress bus are assigned 00 for RAM, 01 for ROM and 10 forinterface registers. a. How many RAM and ROM chips are needed? b. Draw a memory-address map for the system? c. Give the address range in hexadecimal for RAM, ROM, andinterface. A computer employs RAM chips of 256 x 8 and ROM chips of 1024x 8. The computer system needs 2K bytes of RAM, 4K bytes of ROM,and four interface units, each with four registers. A memory-mappedI/O configuration is used. The two highest-order bits of theaddress bus are assigned 00 for RAM, 01 for ROM and 10 forinterface registers. a. How many RAM and ROM chips are needed? b. Draw a memory-address map for the system? c. Give the address range in hexadecimal for RAM, ROM, andinterface.

Explanation / Answer

x.Xr,

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