comparison between memory mapping and peripheral mapping

by - Redixee on - 5:14 PM

Memory-mapped

1.16- bit address.

2. MEMW AND MEMR.

3.memory-related instruction is used.

4.Data transfer is taking place between any register and I/O.

5.3-byte instructions.

6.64KB of memory is shared between I/O devices and

memory.

7.65536 = 64KB

8. More hardware is required.

9. ALU operations are directly performed on I/O data.

Peripheral mapped

1.8-bit address

2.IOR and IOW

3.IN and OUT instructions are used.

4.Data transfer between accumulator between and input and output devices.

5.2 bytes instructions.

6.NO sharing of memory.

7. 256 I/O.

8.Less hardware is required.

9.ALU operations are performed on the accumulator.

comparison between memory mapping and peripheral mapping

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