| ??? 04/21/07 14:22 Read: times |
#137720 - Hidden P2 Register? Responding to: ???'s previous message |
The pins on the processor are connected to an internal multiplexer. One input is the P2 register. The other is connected to the upper byte of internal address bus.
The internal address bus can be either the program counter, the data pointer, or other special address (such as the address used to fetch the interrupt vector). |
| 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 |