| ??? 04/01/10 10:43 Modified: 04/01/10 10:44 Read: times |
#174729 - reply to re Responding to: ???'s previous message |
Hithesh N said:
Valentin, So if my external memory starts at 4000H, then MOV DPTR, #4000H MOVX A, @DPTR should put the byte at 4000h into A. correct? Hithesh, If, by external memory, you really mean external data memory (as Andy has already hinted) then your example would indeed be correct. I also recommend that you spend a little time reading 'the bible', suggest you look in the 'memory organisation' section as a starting point.. Cheers, Valentin |
| Topic | Author | Date |
| 8051 Instruction MOV A, addr | 01/01/70 00:00 | |
| If reading from codespace, use 'MOVC' | 01/01/70 00:00 | |
| Why CLR A ? | 01/01/70 00:00 | |
| Good question.. | 01/01/70 00:00 | |
| I must be going blind! | 01/01/70 00:00 | |
| re | 01/01/70 00:00 | |
| Did you check the so-called "bible"? | 01/01/70 00:00 | |
| I should have clarified | 01/01/70 00:00 | |
external | 01/01/70 00:00 | |
| reply to re | 01/01/70 00:00 | |
| CLR A?? | 01/01/70 00:00 | |
| "bible" time | 01/01/70 00:00 | |
| Done :-) | 01/01/70 00:00 | |
| "bible" time | 01/01/70 00:00 |