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. |
0 Comments
Please do not enter any spam link in the comment box.