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Programming Considerations Chapter 5
VXI-MXI User Manual 5-18 © National Instruments Corporation
Alternative Worksheets for Planning Your VXIbus/MXIbus Logical Address
Map
For most VXIbus/MXIbus systems, you may find the following worksheet helpful when setting
up a system using the High/Low format for window configuration. The entire system can be
described on one worksheet. The dotted lines can be used to add additional MXIbus links to
Level 1 of the system, or to connect a Level 2 MXIbus link to one of the devices on Level 1.
Figure 5-11 presents one of these worksheets filled out for the example VXIbus/MXIbus system
shown in Figure 5-5. Notice that the system does not take up as much of the logical address
space as the Base/Size method of configuration because address requirements do not have to
occupy blocks in powers of two. With High/Low configuration, each VXI-MXI window can be
configured for exactly the amount of address space the mainframe needs.