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Appendix B Default Settings
© National Instruments Corporation B-3 VXI-USB User Manual
Default Software Settings
Table B-1. VXI-USB Hardware Default Settings
Hardware Component Default Setting
S1—Firmware recovery N: do not recover firmware
S2—VXIbus CLK10 source From onboard oscillator
S3—SMB trigger in termination ON: terminated
S4—SMB CLK10 in termination ON: terminated
S5—SMB CLK10 direction IN: receive CLK10 signal
S6—SMB CLK10 out polarity Noninverted
Table B-2. MAX USB Tab Default Settings
Editor Field Default Setting
USB block size 64 KB
Table B-3. MAX VXI Bus Tab Default Settings
Editor Field Default Setting
Bus timeout value 500 µs
VXI retry generation Enabled
Automatic retries Disabled
A24/A32 write posting Disabled
Transfer limit (bytes) 256/2048 for 2eVME protocol
Requester mode Release on Request
Request level 3
Fair requester Enabled
Bus arbitration mode Prioritized
Arbiter timeout Enabled