System Memory Mapping
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System Memory Mapping
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LadderDIP IV has the following system memory mapping
User diagrams should use the areas classified as "USER" only
Area |
Start Address
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End Address |
Number of words |
Class |
I/O |
%MW0 |
%MW199 |
200 |
RESERVED |
System |
%MW200 |
%MW599 |
400 |
RESERVED |
Retentive (User) |
%MW600 |
%MW619 |
20 |
USER |
System |
%MW800 |
%MW999 |
200 |
RESERVED |
User Data |
%MW1000 |
%MW1999 |
1000 |
USER |
Retentive (System) |
%MW2000 |
%MW2079 |
80 |
RESERVED |
System |
%MW2080 |
%MW2199 |
120 |
RESERVED |
User Data |
%MW2200 |
%MW3999 |
1800 |
USER |