VXi 320222-01 User Manual

Page of 209
Programming Considerations
Chapter 5
VXI-MXI User Manual
5-10
© National Instruments Corporation
Resource Manager Mainframe:
  
 VXIbus Mainframe #1   
 
Total number of logical addresses required by this device:
        
 
12        
 
Range =
      
  0
 – 
F    
 
Round total number up to the next power of two:
     
  16 (2
4
  )     
 
Size =
    
  8-4 = 4     
 
First Level MXIbus Link:
           
 
MXIbus #1            
 
(Fill in after completing charts on the following pages)
Total number of logical addresses required by MXIbus Link:
       
 
101        
 
Range =
    
  80 – FF  
 
Round total number up to next power of two:
*    
  128  (2
7
  )    
 
Size =
    
  8-7 = 1     
 
First Level MXIbus Link:
           
 
MXIbus #2            
 
(Fill in after completing charts on the following pages)
Total number of logical addresses required by MXIbus Link:
         
 
8        
 
Range =
    
  10 – 17   
 
Round total number up to next power of two:
     
  8  (2
3
  )    
 
Size =
    
  8-3 = 5     
 
First Level MXIbus Link:
                    
 
                     
 
(Fill in after completing charts on the following pages)
Total number of logical addresses required by MXIbus Link:
          
 
         
 
Range =
          
 
         
 
Round total number up to next power of two:
          
 
         
 
Size =
          
 
           
 
Total Number of Logical Addresses Required:
      
  152    
 
(Add numbers after the "*")
Range =       
  0 – FF    
 
Round total number up to next power of two:
       
 
256      
 
Size =
    
  8-8 = 0   
 
(If this number is greater than 256, you need to reorganize devices and try again.)
Figure 5-7.  Worksheet 1 for Example VXIbus/MXIbus System