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???
02/03/06 14:01
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 		 #109067 - It isn't obsolete!
Responding to: ???'s previous message
Andy said:
but the 8255 is an old crock that's been obsolete for years!

This isn't true! Production of 82C55 is still active. Have a look at here:

http://www.intersil.com/cda/devic...55A,0.html

Even a radiation hard variant is manufactured.

Andy said:
The only real reason that the 8255 was ever used was for old-fashioned 8031s with external memory - because the address+data bus used up nearly all the port pins.

This isn't true either. 8255 was and is widestly used in most different electronics applications! Why else should intersil manufacture this chip today??

Kai

List of 47 messages in thread
TopicAuthorDate
8255 interfacing with SILABS C8051F226            01/01/70 00:00      
   The code is irrelevant, that may and may            01/01/70 00:00      
   Bizarre juxtaposition!!            01/01/70 00:00      
      It isn't obsolete!            01/01/70 00:00      
         Whatever Andy said, the following is the            01/01/70 00:00      
            Hmm...            01/01/70 00:00      
               The fact that something is done by someo            01/01/70 00:00      
                  Turn arround arround arround...            01/01/70 00:00      
                     obsolete - yes, still made yes            01/01/70 00:00      
                        What obsolete means...            01/01/70 00:00      
                           the dictionary states            01/01/70 00:00      
                              So are you and I, if that\'s your view.            01/01/70 00:00      
                                 It should be clear that my reference            01/01/70 00:00      
                              Childish!            01/01/70 00:00      
               Rad hard            01/01/70 00:00      
                  8080's ? I don't think so... look            01/01/70 00:00      
                     ENough !!            01/01/70 00:00      
                     2 wires!?            01/01/70 00:00      
                        Remote Launch Control            01/01/70 00:00      
                           The wires run the            01/01/70 00:00      
                  I don't think so ...            01/01/70 00:00      
                     I was Wrong            01/01/70 00:00      
   if so, why do you read old books            01/01/70 00:00      
      Cross-posting            01/01/70 00:00      
         basically            01/01/70 00:00      
   Quasi Bidirectional ports & 8255            01/01/70 00:00      
      Just Configure it!            01/01/70 00:00      
      now you've got me confused ...            01/01/70 00:00      
         Quasi ports & 8255            01/01/70 00:00      
            Do you want TCP/IP with that?            01/01/70 00:00      
            Superb            01/01/70 00:00      
            not really            01/01/70 00:00      
   problem solved lessons learnt            01/01/70 00:00      
      "cheap" as in at least 5 times the price            01/01/70 00:00      
         Lighten Up!!!            01/01/70 00:00      
            I do not care if someone does it like I            01/01/70 00:00      
               "Modern" speeds???            01/01/70 00:00      
                  we can go on forever, let's not            01/01/70 00:00      
         You really have fossilized!            01/01/70 00:00      
            If advising against using fossils is not            01/01/70 00:00      
               You have forgotten how to learn!            01/01/70 00:00      
                  No such thing            01/01/70 00:00      
                  Erik racist? Never!            01/01/70 00:00      
                     Pushed over that line            01/01/70 00:00      
         The "classic" implementation            01/01/70 00:00      
         Hey!            01/01/70 00:00      
      No offense, of course!            01/01/70 00:00      

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