RAM and 2K bytes of ROM along with interface unit of 128 registers each. A memory mapped I/O

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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A computer employs RAM chips of 512 x 16 and ROM chips of 1024 x 8. The computer system needs 4K bytes of
RAM and 2K bytes of ROM along with interface unit of 128 registers each. A memory mapped I/O configuration
is used. The two higher order bits are assigned for RAM, ROM and interface as 00, 01 and 10 respectively.
a) How many RAM and ROM chips are needed
b) Design a memory-address map for the above system
Transcribed Image Text:A computer employs RAM chips of 512 x 16 and ROM chips of 1024 x 8. The computer system needs 4K bytes of RAM and 2K bytes of ROM along with interface unit of 128 registers each. A memory mapped I/O configuration is used. The two higher order bits are assigned for RAM, ROM and interface as 00, 01 and 10 respectively. a) How many RAM and ROM chips are needed b) Design a memory-address map for the above system
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