| ??? 04/24/08 11:46 Read: times |
#153950 - Thanks a lot Responding to: ???'s previous message |
Jan Waclawek said:
I came across the same question a couple of years ago and concluded, that as the uPSDs are in fact literally glued together from a standard '51 and the PSD part, so I concluded that it should be safe to use the P2:Ri couple with movx @Ri. I was using it so ever since without any problems (uPSD3212). Thanks for your replies. Jan, that's the ideal scenario that I was hoping. We are re-designing an old board based around an 80C32 for cost reduction and the decision was to use the uPSD3233B. The code was written in assembler and it implements a communication protocol which is time sensitive, so the request from the client was that we leave the code pretty much intact. Sadly, it is full of movx @Ri instructions using P2 for the high address byte. By the way, I contacted a ST FAE yesterday about this. I also asked what would be the behavior of using the 52-pin version that doesn't have P0 & P2 external ports. I hope that this won't make any difference but I'll post the response here. Carlos |
| Topic | Author | Date |
| movx @ri,A in uPSD3200 micros | 01/01/70 00:00 | |
| Try the datasheet | 01/01/70 00:00 | |
| Not the (complete) answer? | 01/01/70 00:00 | |
| internal/external memory in uPSD32xx | 01/01/70 00:00 | |
| Thanks a lot | 01/01/70 00:00 | |
I had the 52 pin version, too... | 01/01/70 00:00 |