| ??? 04/20/07 15:14 Read: times Msg Score: -1 -1 Answer is Wrong |
#137639 - MMIO Responding to: ???'s previous message |
The only way to connect external devices to the 8051 is to use MMIO, and access it through the MOVX instructions.
All memory-mapped means is that the address of the peripheral is somewhere in the external memory address space. You choose the specific address by designing the chip-select decoder. Of course, it is important to choose a location that does not have anything else mapped into it. |
