Specifies whether I/O accesses should attempt to use DMA (TRUE) or Programmed I/O (FALSE). In some implementations, this property may have global effects even though it is documented as a local property. This behavior affects performance and not functionality. Note: In the Instr class, this property is valid only for GPIB, GPIB-VXI, PXI, and VXI resources.

Remarks

The following table lists the characteristics of this property.

Short Name Allow DMA
Data type cbool.png
Permissions Read/Write
Available in Run-Time Engine Yes
Available in Real-Time Operating System Yes