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			 I/O Memory Mapping   
     			
     				  
     			
     			
     				 
     			
	     
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LadderDIP IV has the following memory mapping
Note that, when used as I/O pins, the address changes according to the configured direction using two different memory areas.
Pin Name  | 
Location (Pinout)  | 
Primary Function  | 
Secondary Function  | 
Address when I/O is configured as INPUT  | 
Address when I/O is configured as OUTPUT  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
|
IO1  | 
P1-1  | 
I/O  | 
  | 
%IX0.0  | 
%QX80.0  | 
|
IO2  | 
P1-2  | 
I/O  | 
  | 
%IX0.1  | 
%QX80.1  | 
|
IO3  | 
P1-4  | 
I/O  | 
  | 
%IX0.2  | 
%QX80.2  | 
|
IO4  | 
P1-5  | 
I/O  | 
AIN1  | 
%IX0.3  | 
%QX80.3  | 
|
IO5  | 
P1-6  | 
I/O  | 
AIN2  | 
%IX0.4  | 
%QX80.4  | 
|
IO6  | 
P1-7  | 
I/O  | 
  | 
%IX0.5  | 
%QX80.5  | 
|
IO7  | 
P1-8  | 
I/O  | 
  | 
%IX0.6  | 
%QX80.6  | 
|
IO8  | 
P1-9  | 
I/O  | 
  | 
%IX0.7  | 
%QX80.7  | 
|
IO9  | 
P1-10  | 
I/O  | 
  | 
%IX0.8  | 
%QX80.8  | 
|
IO10  | 
P1-11  | 
I/O  | 
  | 
%IX0.9  | 
%QX80.9  | 
|
IO11  | 
P1-12  | 
I/O  | 
  | 
%IX0.10  | 
%QX80.10  | 
|
IO12  | 
P1-13  | 
I/O  | 
  | 
%IX0.11  | 
%QX80.11  | 
|
IO13  | 
P1-14  | 
I/O  | 
  | 
%IX0.12  | 
%QX80.12  | 
|
IO14  | 
P1-15  | 
I/O  | 
AIN3  | 
%IX0.13  | 
%QX80.13  | 
|
IO15  | 
P2-13  | 
I/O  | 
AIN4  | 
%IX0.14  | 
%QX80.14  | 
|
IO16  | 
P2-14  | 
I/O  | 
  | 
%IX0.15  | 
%QX80.15  | 
|
IO17  | 
P2-16  | 
I/O  | 
  | 
%IX1.0  | 
%QX81.0  | 
|
IO18  | 
P2-18  | 
I/O  | 
  | 
%IX1.1  | 
%QX81.1  | 
|
IO19  | 
P2-20  | 
I/O  | 
  | 
%IX1.2  | 
%QX81.2  | 
|
IO20  | 
P2-21  | 
I/O  | 
  | 
%IX1.3  | 
%QX81.3  | 
|
IO21  | 
P2-22  | 
I/O  | 
  | 
%IX1.4  | 
%QX81.4  | 
|
IO22  | 
P2-23  | 
I/O  | 
  | 
%IX1.5  | 
%QX81.5  | 
|
IO23  | 
P2-24  | 
I/O  | 
  | 
%IX1.6  | 
%QX81.6  | 
|
IO24  | 
P2-26  | 
I/O  | 
  | 
%IX1.7  | 
%QX81.7  | 
|
IO25  | 
P2-28  | 
I/O  | 
AIN5  | 
%IX1.8  | 
%QX81.8  | 
|
IO26  | 
P2-30  | 
I/O  | 
AIN6  | 
%IX1.9  | 
%QX81.9  | 
|
IO27  | 
P2-32  | 
I/O  | 
  | 
%IX1.10  | 
%QX81.10  | 
|
  | 
  | 
  | 
  | 
  | 
  |