| ??? 06/30/08 12:40 Modified: 06/30/08 12:50 Read: times |
#156313 - yes, you are Responding to: ???'s previous message |
xdata is used for external memory. i am not using any external memory.
yes, you are, the RD2 has, get this "external memory internal to the chip". The origin of this is that for ages the only memory above 256 bytes on any '51 had to be external, then the chipmakers started putting dome inside the package, but it is still referred to as "external memory' Erik |
| Topic | Author | Date |
| P89C51RD2BN MEMORY MODEL | 01/01/70 00:00 | |
| look up the "code" keyword in the manual | 01/01/70 00:00 | |
| look up the "xdata" keyword in the manual | 01/01/70 00:00 | |
| the whole manual might be worth reading... ;-) | 01/01/70 00:00 | |
| look up the word "overflow" in a dictionary | 01/01/70 00:00 | |
| ??????????????? | 01/01/70 00:00 | |
| Explanation | 01/01/70 00:00 | |
| about the size of data memory | 01/01/70 00:00 | |
| Arrays | 01/01/70 00:00 | |
| is this caused by the model? | 01/01/70 00:00 | |
| Re: Little more information | 01/01/70 00:00 | |
| Problem Solved | 01/01/70 00:00 | |
| IDATA - beware | 01/01/70 00:00 | |
| why not XDATA | 01/01/70 00:00 | |
| external memory?????? | 01/01/70 00:00 | |
| yes, you are | 01/01/70 00:00 | |
more confusing terminology... | 01/01/70 00:00 |