| ??? 04/02/07 23:55 Read: times |
#136456 - You are correct Responding to: ???'s previous message |
All execution addresses beyond internal ROM are external.
There is logic in the 8051 that monitors the address, and compares it with the internal / external trip point. That logic determines which memory to read. |
| Topic | Author | Date |
| MOVC question | 01/01/70 00:00 | |
| what derivative? | 01/01/70 00:00 | |
| Re: MOVC question | 01/01/70 00:00 | |
| MOVC is external with /EA low | 01/01/70 00:00 | |
| Eureka! | 01/01/70 00:00 | |
| You are correct | 01/01/70 00:00 | |
| Derivative dependent | 01/01/70 00:00 | |
| I'm a classical sort of guy | 01/01/70 00:00 | |
| I think it is irrelevant to discuss derivatives... | 01/01/70 00:00 | |
| not discussing such | 01/01/70 00:00 | |
| for example DS89C4x0? | 01/01/70 00:00 | |
| yup | 01/01/70 00:00 | |
| Blast from the past | 01/01/70 00:00 | |
| this is how it works with an unlocked AT89C52 | 01/01/70 00:00 | |
| Nice work | 01/01/70 00:00 | |
miniLA | 01/01/70 00:00 | |
| an answer | 01/01/70 00:00 |