| ??? 08/03/05 07:10 Read: times |
#98724 - Ask Erik? Responding to: ???'s previous message |
Didn't Erik mention this trick recently?
(sorry - couldn't find it). But yes - during any external memory access, the 16-bit address will be emitted on P0, P2 during the address phase, and there's no reason why your external hardware shouldn't interpret that as "data" - if you really want it to...! This would probably preclude any use of "real" external memory (RAM, ROM, etc), though... |
| Topic | Author | Date |
| Changing address to data ?, Opinion. | 01/01/70 00:00 | |
| Not Possible Kurnia ! | 01/01/70 00:00 | |
| explanation | 01/01/70 00:00 | |
| Good Answer,not Good Question | 01/01/70 00:00 | |
| Ask Erik? | 01/01/70 00:00 | |
| Ask Erik? | 01/01/70 00:00 | |
| possible | 01/01/70 00:00 | |
| Possible | 01/01/70 00:00 | |
| re:possible | 01/01/70 00:00 | |
| Students | 01/01/70 00:00 | |
| Speed | 01/01/70 00:00 | |
| Found it! | 01/01/70 00:00 | |
| documentation | 01/01/70 00:00 | |
| Yes, its a good idea ! | 01/01/70 00:00 | |
| If you do it that way | 01/01/70 00:00 | |
| speed? really? | 01/01/70 00:00 | |
| the source of this discussion was a post | 01/01/70 00:00 | |
| addressed 16-bit movx write | 01/01/70 00:00 | |
Thank's for the opinion | 01/01/70 00:00 |