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???
12/26/04 00:24
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 		 #83862 - instead of the 8255
Responding to: ???'s previous message
If you're faced with the need to use a PAL or something as your address decoder to support the 8255, why not just dump the 8255 altogether and roll up its functionality (or the functionality you need) and all of the glue into a CPLD? I betcha it'll be cheaper, too.

--a

List of 31 messages in thread
TopicAuthorDate
Hardware problem            01/01/70 00:00      
   Address decoding            01/01/70 00:00      
   Use OR            01/01/70 00:00      
      Jan Waclawek            01/01/70 00:00      
   Adress decoding            01/01/70 00:00      
   instead of the 8255            01/01/70 00:00      
   Code segment adr space VS Xmem adr space            01/01/70 00:00      
   Why the 8255 ?            01/01/70 00:00      
      Steve M. Taylor            01/01/70 00:00      
         Farnell Distributor in Iran            01/01/70 00:00      
            Disturbutors donot supply many chips            01/01/70 00:00      
               Re: Disturbutors donot supply many chips            01/01/70 00:00      
                  Quite off-topic now            01/01/70 00:00      
         alternatives?            01/01/70 00:00      
   Check for a sinple gate            01/01/70 00:00      
   8254+1            01/01/70 00:00      
      Who ever said the 8255 was for x86?            01/01/70 00:00      
      a rebuttal            01/01/70 00:00      
         rebutal            01/01/70 00:00      
            psd            01/01/70 00:00      
            decoder            01/01/70 00:00      
         Item #2 Rebuttal            01/01/70 00:00      
            not me            01/01/70 00:00      
      Atmel Disturbutor in Iran            01/01/70 00:00      
         Thanx Farshid.            01/01/70 00:00      
            chips            01/01/70 00:00      
               Dear Steve            01/01/70 00:00      
                  How many ?            01/01/70 00:00      
                     AT89C51SND            01/01/70 00:00      
                        SMD soldering iron?            01/01/70 00:00      
                     there is no market in Iran for them            01/01/70 00:00      

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