| ??? 04/21/07 14:16 Read: times |
#137718 - data sheet Responding to: ???'s previous message |
Mike Stegmaier said:
Had P2 not have been able to be saved, then movx @Rx,A would be useless, because we couldn't then define the high address bits. FWIW: Not sure I understand what you're saying but wouldn't this have something to do with: "During accessess to external data memory that uses 8-bit addresses (MOVX @RI), port 2 emits the contents of the P2 Special Function Register"... (from atmel AT89C51 data sheet page 3).. regards |
| Topic | Author | Date |
| if I could crunch my code... | 01/01/70 00:00 | |
| Optimisation | 01/01/70 00:00 | |
| the original 8051 is the problem... | 01/01/70 00:00 | |
| Duhh! | 01/01/70 00:00 | |
| again, I want to "crunch my code" | 01/01/70 00:00 | |
| starg with something that works. | 01/01/70 00:00 | |
| Did You Look at Movx @R0 ? | 01/01/70 00:00 | |
| Thanks (after I tried it LOL) | 01/01/70 00:00 | |
| data sheet | 01/01/70 00:00 | |
Hidden P2 Register? | 01/01/70 00:00 | |
| Simple,but no simpler | 01/01/70 00:00 | |
| Problem? | 01/01/70 00:00 | |
| save a few bytes by using JBC | 01/01/70 00:00 | |
| an alternative | 01/01/70 00:00 | |
| WRONG | 01/01/70 00:00 |