Chapter 3 VXI-MXI-2 Configuration andInstallation
PCI-MXI-2 for Linux 3-14 ni.com
Use switch 2 of U35 to select whether you want the VXI-MXI-2 to
automatically control termination of the MXIbus. Switch 1 of U35 lets
you manually control whether to terminate the MXIbus when automatic
termination is turned off. Switch 1 has no effect when switch 2 is set for
automatic MXIbus termination; you must turn off automatic termination
if you want to manually control termination.
Figure 3-9. MXIbus Termination
Configuration EEPROM
The VXI-MXI-2 has an onboard EEPROM, which stores default register
values that are loaded at power-on. The EEPROM is divided into two
halves—a factory-configuration half, and a user-configuration half. Both
halves were factory configured with the same configuration values so you
can modify the user-configurable half, while the factory-configured half
stores a back-up of the default user settings.
a. Automatic MXIbus Termination (Default)
b. Terminate MXIbus (On)
c. Do Not Terminate MXIbus (Off)
Restore Factory Configuration
Change Factory Configuration
Automatic MXIbus Termination
Terminate MXIbus
Yes
Yes
No
No
No
No
Yes
Yes
U35
1234
Restore Factory Configuration
Change Factory Configuration
Automatic MXIbus Termination
Terminate MXIbus
Yes
Yes
No
No
No
No
Yes
Yes
U35
1234
Restore Factory Configuration
Change Factory Configuration
Automatic MXIbus Termination
Terminate MXIbus
Yes
Yes
No
No
No
No
Yes
Yes
U35
1234