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Configuration and Installation Chapter 3
VXI-MXI User Manual 3-14 © National Instruments Corporation
Select interlocked arbitration mode by changing the default setting of the slide switch from
Normal to Interlocked Bus Cycles as shown in Figure 3-11.
Interlocked Bus Cycles
Normal
S3
a. Normal Operating Mode (Default Setting)
Interlocked Bus Cycles
Normal
S3
b. Interlocked Bus Cycle Mode
Figure 3-11. Interlocked Arbitration Mode Selection
MXIbus System Controller
The MXIbus System Controller slide switch selects whether or not the VXI-MXI interface
module is the MXIbus System Controller. The MXIbus System Controller is the first device in
the MXIbus daisy-chain. The System Controller supplies the arbitration circuitry for MXIbus
arbitration, the MXIbus interrupt acknowledge daisy-chain driver, and the MXIbus bus timeout
unit. The VXI-MXI is shipped from the factory configured for non-MXIbus System Controller
operation. If the VXI-MXI is the first device in the MXIbus link, configure the VXI-MXI as the
MXIbus System Controller by changing the default setting of the slide switch from Disabled to
Enabled, as shown in Figure 3-12.