VXi Microwave Matrix ユーザーズマニュアル

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SM7100 Preparation for Use 
13 
Example 2 
LA 
(decimal) 
Divide 
by 16 
 
MSB LSB 
 
 
 
 
 
 
 
200 
200 / 16  =  12 
w/ 8 remaining  Divide by 16. 
  
1100 
1000  Convert to MSB and LSB. 
  
Convert to hexadecimal. Set the back 
switch to C and the front switch to 8. 
 
0
 1
 2
 3 
4 5 6
 7
 8
 9
 A
 B
 C
 D
 E
 F
0
 1
 2
 3 
5 6
 7
 8
 9
 A
 B
 C
 D
 E
 F
BACK
FRONT
 
F
IGURE 
2-2:
 
L
OGICAL 
A
DDRESS 
E
XAMPLE 
Here is another way of looking at the conversion: 
LA = (back switch x 16) + front switch 
 
LA = (1 x 16) + 9 
 
LA = 16 + 9 
 
LA = 25 
 
Set the address switches to FF for dynamic configuration. Upon power-up, the resource manager 
will assign a logical address. See Section F - Dynamic Configuration in the VXIbus Specification 
for further information. 
 
There is only one logical address per SMIP II base unit. Address assignments for individual 
modules are handled through the A24/A32 address space allocation. 
 
S
ELECTING THE 
E
XTENDED 
M
EMORY 
S
PACE
 
The Extended Memory Space of the SMIP II is set by a dip switch that is located on the bottom 
edge of the interface card. Position 1, located to the left on the dip switch, selects between A24 
and A32 memory address space. In the UP position, the SMIP II will request A24 space. In the 
DOWN position, the SMIP II will request A32 space. (Position 2 is not currently used.) The 
selection of the address space should be based upon the memory allocation requirements of the 
system that the SMIP II module will be installed. The amount of memory allocated to the SMIP II 
module is independent of the address space selected.