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Andy Neil
09/06/05 01:22
Read: 1121 times

#100650 - bible study time?
Responding to: Rupesh Deenadayalan's previous message
For fundamental architectural questions like this, you need to refer to the documents commonly referred to as "the bible" for the 8051:

Chapter 1 - 80C51 Family Architecture:

Chapter 2 - 80C51 Family Programmer?s Guide and Instruction Set:

Chapter 3 - 80C51 Family Hardware Description:

Your specific question about power ON is answered on p19 of Chapter 3, "Power-ON Reset" (see also p18, "Reset"); accessing external memory is described on p6, "Accessing External Memory"

This gives the standard operation for the 8051 architecture; you will also need to check the Datasheet for your particular device for further information specific to that device.

You would probably also benefit from reading the Tutorials on this site.

List of 16 messages in thread
Micro Controller powered?      Rupesh Deenadayalan      09/06/05 00:10      
   bible study time?      Andy Neil      09/06/05 01:22      
      Reboot ?      Rupesh Deenadayalan      09/08/05 00:53      
         See reply (Off-Topic)      Andy Neil      09/08/05 01:41      
   Not A PC      Neil Kurzman      09/06/05 09:35      
      Reboot doubt      Rupesh Deenadayalan      09/08/05 00:35      
         Off Topic.      Andy Neil      09/08/05 00:47      
            Rampant code execution      Andy Neil      09/08/05 01:00      
            CS:IP      Abhishek Singh      09/08/05 06:45      
               Irrelevant?      Andy Neil      09/08/05 08:47      
                  irrelevent: irrelevent?      Abhishek Singh      09/08/05 09:16      
                     TOTALLY irrelevant, at least at a '51 fo      Erik Malund      09/08/05 09:39      
                        Already established!      Andy Neil      09/08/05 10:37      
                     Wrong      Andy Neil      09/08/05 11:46      
                        You Sure?      Neil Kurzman      09/09/05 12:45      
                           If you want a proper answer...      Andy Neil      09/10/05 01:52      

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