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Chapter 3 Configuration and Installation
© National Instruments Corporation 3-23 VXI-MXI User Manual
Reset Signal Select
The VXI-MXI generates a 200 ms active low pulse both on power-up and when you press the
pushbutton system reset switch on the front panel. Using the Reset Signal Select slide switch,
you can route the pulse to either VMEbus signal ACFAIL* or SYSRESET*. See Figure 3-19.
S7
a. SYSRESET* Asserted (Default Setting)
Reset Signal Select
S7
b. ACFAIL* Asserted
Reset Signal Select
ACFAIL*
SYSRESET*
ACFAIL*
SYSRESET*
Figure 3-19. Reset Signal Selection Settings
Installing the VXI-MXI Hardware
The VXI-MXI is a VXIbus extender device; it has no onboard intelligence or memory. For the
VXI-MXI to perform as a MXIbus master, a device with VMEbus master capability must be
installed in the VXIbus mainframe. For the VXI-MXI to perform as a MXIbus slave in A16,
A24, or A32 space, a slave VMEbus device with resources in those address spaces must be
installed in the VXIbus mainframe.
Warning: The VXI-MXI is shipped from the factory configured to be installed into Slot 0
of your VXIbus mainframe. Installing your VXI-MXI into any slot other than
Slot 0 without changing its default configuration can damage the VXI-MXI, the
VXIbus backplane, or both.
If a device is already installed in Slot 0, reconfigure that device and install it in another slot, or
reconfigure your VXI-MXI for Non-Slot 0 use. Do not install a device configured for Slot 0 into
another slot without first reconfiguring it for Non-Slot 0 use. Remember that the VXI-MXI must
have the VMEbus BTO. If another device is providing the VMEbus BTO function, disable its
BTO before installing the VXI-MXI.