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Dear, How to enlarge 64k data memory to 128k data memory on 8051 ? Best Regards, Jimmy
You are probably talking about variable banking... Well, The implementation depends on what device you are using ( there may be more than one way available ). The general idea is pretty much the same among the 8051 family. Some 8051's have a special XPAGE SFR, some don't... You may take a look at the following documents in order to get more extra info on it. One Application notes and a Knowledgebase Article listed bellow: http://www.keil.com/appnotes/docs/apnt_130.asp http://www.keil.com/support/docs/2103.htm Alex