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???
06/08/04 14:43
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 		 #72078 - RE: Using P0 for LCD along with 64K Ext. RAM
Responding to: ???'s previous message
hi,
one more note about additional latch: indeed such way keeps P2 for another usage. But as I have already said: only as output port! It is because during MOVX @R0/@R1 P2 does not change its value but uses strong pull-ups for output signals. As result, if you try to use it as input then something may be damaged if external logic produce low level to the pins! So be careful.

Regards,
Oleg

List of 39 messages in thread
TopicAuthorDate
Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
   RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
      Ignore above, corrected version here            01/01/70 00:00      
         RE: Ignore above, corrected version here            01/01/70 00:00      
            RE: Ignore above, corrected version here            01/01/70 00:00      
               RE: Ignore above, corrected version here            01/01/70 00:00      
               RE: Ignore above, corrected version here            01/01/70 00:00      
                  RE: Ignore above, corrected version here            01/01/70 00:00      
         RE: Ignore above, corrected version here            01/01/70 00:00      
            RE: Ignore above, corrected version here            01/01/70 00:00      
               the reason for push/pop            01/01/70 00:00      
   RE: Using P0 for LCD along with 64K Ext.            01/01/70 00:00      
      RE: Using P0 for LCD along with 64K Ext.            01/01/70 00:00      
   RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
      RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
      RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
         RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
   RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
      RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
         RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
            RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
            RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
               RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
                  RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
                     RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
                     RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
   RE: Using P0 for LCD along with 64K Ext. RAM            01/01/70 00:00      
   Version 2            01/01/70 00:00      
      RE: Version 2            01/01/70 00:00      
      RE: Version 2            01/01/70 00:00      
         RE: Version 2            01/01/70 00:00      
            RE: Version 2 - Supervisory chip            01/01/70 00:00      
               RE: Version 2 - Supervisory chip            01/01/70 00:00      
      RE: Version 2            01/01/70 00:00      
      Memory maped LCD?            01/01/70 00:00      
         RE: Memory maped LCD?            01/01/70 00:00      
            RE: Memory maped LCD?            01/01/70 00:00      
               RE: Memory maped LCD?            01/01/70 00:00      
                  RE: Memory maped LCD? another way            01/01/70 00:00      

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