Chapter 3
Configuration and Default Settings
©
National Instruments Corporation
3-21
VXIpc 770/870B Series User Manual
Front Panel SMB ExtClk Setup
The VXIpc 870B Series computers have an SMB connector on the front
panel for an external clock. Onboard programmable logic can configure the
VXIpc 870B Series to drive its 10 MHz VXI CLK10 signal to this
connector as an output or to use this connector as an input for the 10 MHz
VXI CLK10 signal. In this fashion, you can configure multiple mainframes
to operate off a single 10 MHz system clock. Refer to the
section for information on properly configuring
the hardware to use the CLK10 routing feature of the VXIpc 770/870B
Series.
Table 3-15.
PCI-MXI-2 MXI-2 Bus Tab Default Settings
Setting
Default Value
Bus Settings: Bus Timeout
1 ms
System Controller
Auto Detect
Advanced: Bus Protocols: Enable
MXI-2 Auto Retry
Checked
Advanced: Bus Protocols:
Enabled A24/A32 Write Posting
Checked
Advanced: Bus Protocols: MXI
Transfer Limit
256
Advanced: MXI-2 CLK 10 Signal
Receive
Table 3-16.
PCI-MXI-2 PCI Tab Default Settings
Setting
Default Value
User Window: Enable Low-Level
Register Access API Support
Checked
User Window: User Window Size
64 KB
Enable PCI Expansion ROM
Checked
DMA Setting
Enable DMA on this Controller