VXi 320222-01 User Manual

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

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.