Chapter 5 Programming Considerations
© National Instruments Corporation 5-11 VXI-MXI User Manual
MXIbus Link:
MXIbus #1
Device: MXIbus Device A
Number of logical addresses required by device: 3 Range = E0 – E3
Round total number up to the next power of two: 4 (22
) Size = 8-2 = 6
List other MXIbus links to this mainframe:
Number of logical addresses required by additional MXIbus links: + 0
Total number of logical addresses required by this device: = 3 Range = E0 – E3
Round total number up to the next power of two: * 4 (22
) Size = 8-2 = 6
Device: MXIbus Device B
Number of logical addresses required by device: 1 Range = E4
Round total number up to the next power of two: 1 (20
) Size = 8-0 = 8
List other MXIbus links to this mainframe:
Number of logical addresses required by additional MXIbus links: + 0
Total number of logical addresses required by this device: = 1 Range = E4
Round total number up to the next power of two: * 1 (20
) Size = 8-0 = 8
Device: VXIbus Mainframe #2
Number of logical addresses required by device: 23 Range = C0 – DF
Round total number up to the next power of two: 32 (25
) Size = 8-5 = 3
List other MXIbus links to this mainframe:
Number of logical addresses required by additional MXIbus links: + 0
Total number of logical addresses required by this device: = 23 Range = C0 – DF
Round total number up to the next power of two: * 32 (25
) Size = 8-5 = 3
Device: VXIbus Mainframe #3
Number of logical addresses required by device: 6 Range = 80 – 87
Round total number up to the next power of two: 8 (23
) Size = 8-3 = 5
List other MXIbus links to this mainframe: MXIbus #3
Number of logical addresses required by additional MXIbus links: + 32
Total number of logical addresses required by this device: = 40 Range = A0 – BF
Round total number up to the next power of two: * 64 (26
) Size = 8-6 = 2
Device:
Number of logical addresses required by device: Range =
Round total number up to the next power of two: Size =
List other MXIbus links to this mainframe:
Number of logical addresses required by additional MXIbus links: +
Total number of logical addresses required by this device: = Range =
Round total number up to the next power of two: * Size =
Total Number of Logical Addresses Required: 101
(Add numbers after the "*") Range = 80 – FF
Round total number up to next power of two: 128 (27
) Size = 8-7 = 1
Figure 5-8. Worksheet 2 for Example VXIbus/MXIbus System