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???
03/27/06 21:47
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#113262 - RE: comments
Responding to: ???'s previous message
Well, as you can see, the first 8K CS line goes to teh first RAM (8K).

Now,

Flash is selected by the following formula :
FlashCS = CS1 AND CS2 AND CS3 AND CS4

The second RAM is selected by :

RAM2CS = CS2 AND CS3 AND CS4 AND CS5


I know A11 and A12 are not used in teh address decoder, and this will make the addresses decodabale on multiple addresses but, it will do for now. I will definately correct for this in the final PCB version.

List of 26 messages in thread
TopicAuthorDate
74C922            01/01/70 00:00      
   You don't need to know much            01/01/70 00:00      
      LCD            01/01/70 00:00      
   74C922            01/01/70 00:00      
      I'm curious, of course,            01/01/70 00:00      
   RE: 74C922            01/01/70 00:00      
      comments            01/01/70 00:00      
         RE: comments            01/01/70 00:00      
      whatever you find for the Basic Stamp is            01/01/70 00:00      
         Let's not go there ...            01/01/70 00:00      
            Let's not go there ... as well            01/01/70 00:00      
               Isn't the reason obvious?            01/01/70 00:00      
                  Where do you get that information from?            01/01/70 00:00      
                     It's speculation            01/01/70 00:00      
                        yes it is SEMA PLEASE REPLY            01/01/70 00:00      
                           Donner und Blitzen            01/01/70 00:00      
                              That's EXACTLY what it is, I'll bet            01/01/70 00:00      
                                 timing is everything            01/01/70 00:00      
                                    Difficult to answer            01/01/70 00:00      
                                       second rate            01/01/70 00:00      
   One-off doesn't mean second-rate            01/01/70 00:00      
      nice to see you almost agree            01/01/70 00:00      
         Almost might be an overstatement            01/01/70 00:00      
      74C922            01/01/70 00:00      
   We should close this thread,...            01/01/70 00:00      
      The noise probably scared him off            01/01/70 00:00      

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