| ??? 03/11/05 17:09 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#89488 - RAM/EPROM Responding to: ???'s previous message |
Kai Klaas said:
Neil said:
But you need to translate the scrambled data. Ok, but when and when not? If the memory being accessed with screwy pinouts is being written to and read from by only the microcontroller, no translation is necessary since it will automatically be read out the same way it was written. Translation should only be necessary if the device is written by something that has the correct pin connections (such as an EPROM programmer) and is subsequently read by the microcontroller with an incorrect pin connection. The same should apply for the address lines. In either case, woe to the person who has to try to understand the schematic 3 years later and/or extend the design to additional parts that do need to be connected correctly. Regards, Craig Steiner |
| Topic | Author | Date |
| WEOT: Inconvinient Pinouts. | 01/01/70 00:00 | |
| Cranky pin outs | 01/01/70 00:00 | |
| some like the mother, some the daughter | 01/01/70 00:00 | |
| Z80 family | 01/01/70 00:00 | |
| Not necessarily bad... | 01/01/70 00:00 | |
| It will work....... | 01/01/70 00:00 | |
| When and when not? | 01/01/70 00:00 | |
| RAM/EPROM | 01/01/70 00:00 | |
| Many tolerate it, but some not! | 01/01/70 00:00 | |
| inconvenient pinouts | 01/01/70 00:00 | |
| or thread between pins... | 01/01/70 00:00 | |
| Re: Living in past. | 01/01/70 00:00 | |
| the real question | 01/01/70 00:00 | |
| Errr...... probably | 01/01/70 00:00 | |
| Actually... | 01/01/70 00:00 | |
| erk | 01/01/70 00:00 | |
| Do you mean the package? | 01/01/70 00:00 | |
| package | 01/01/70 00:00 | |
| Max 7301 | 01/01/70 00:00 | |
| All in a days work. | 01/01/70 00:00 | |
FPGA pinouts | 01/01/70 00:00 |