| ??? 08/03/05 08:06 Read: times |
#98728 - possible Responding to: ???'s previous message |
Kurnia Brahmana said:
An external application need 16 bit at once with a high speed. As already noted, it should be possible to provide a 16-bit output (not input) to suitable hardware connected to the "address" bus (P0,P2). But, if you do this, it will probably mean that you cannot use the "address" bus to access any "real" external memory (RAM, ROM, etc) in your system. If this 16-bit, high-speed requirement is really so fundamental to your project, I think you should consider very carefully whether the 8051 is the right processor to use. Would you not be far better off using a processor with a properly desinged & specified 16-bit interface, rather than rely on a "kludge?" I'm not saying that it shouldn't be done - just that you need to think about it very carefully. |
| 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 |