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04/19/02 03:58
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#21916 - V.V. large memory with 8051
Hello,
I would like to know how we can access very large memory such as 8MBytes. Is it possible? My wild guess is to use a free port such as Port 1 in addition to port 0 and port 2 to generate a 24 bit address. The port 1 address will be generated manually i.e. by the program whereas port 0 and 2 address bytes will be generated by the 8051 itself. With 24 bit addressing, 16 Mbytes can be accessed.
But whether this is practical? Anyone has used such scheme and proven? Is there any alternative method or we have to resort to 16 bit processors (having 24 bit addressing capability)?
Also please suggest some memory chips for such large amount? It can be either volatile or non volatile (preferred). But data reads and writes will be very frequent.
Thanks to all in advance............

List of 10 messages in thread
TopicAuthorDate
V.V. large memory with 8051            01/01/70 00:00      
RE: V.V. large memory with 8051            01/01/70 00:00      
RE: V.V. large memory with 8051            01/01/70 00:00      
   RE: V.V. large memory with 8051            01/01/70 00:00      
RE: V.V. large memory with 8051            01/01/70 00:00      
RE: V.V. large memory with 8051            01/01/70 00:00      
RE: V.V. large memory with 8051            01/01/70 00:00      
RE: V.V. large memory with 8051 -more MX            01/01/70 00:00      
RE: V.V. large memory with 8051            01/01/70 00:00      
RE: V.V. large memory with 8051            01/01/70 00:00      

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