MCQOPTIONS
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MCQOPTIONS
| 1. |
Why MOVX instruction is being used to access the ports of the 8255? |
| A. | because 8255 is used to access the memory mapped I/O |
| B. | because 8255 is used to access the external communication |
| C. | because 8255 is used to access the data transfer |
| D. | because 8255 is used to access the interfacing of LCD, motor etc |
| Answer» B. because 8255 is used to access the external communication | |