Figure 2-2. Vxi-Mxi Intx Daughter Card Option Block Diagram - National Instruments VXI-MXI User Manual

General Description
The following information applies only to VXI-MXI kits that include the INTX daughter card
option. Figure 2-2 is a block diagram of the circuitry of the INTX daughter card.

Figure 2-2. VXI-MXI INTX Daughter Card Option Block Diagram

• INTX Registers
VXI-MXI User Manual
INTX
Registers
Interrupt Control
Trigger
Control
System Resets
CLK10 Control
The INTX card has three onboard registers that
reside in the VXI-MXI configuration space: the
INTX Interrupt Configuration Register, the INTX
Trigger Configuration Register, and the INTX
Utility Configuration Register. These registers
configure the mapping of the VMEbus interrupt
lines, the VXIbus trigger lines and the
SYSRESET, SYSFAIL, and ACFAIL lines to and
from the INTX connector. The INTX card also
drives the Extended Device Type Class field in
the VXIbus Status/Control Register when that
register is accessed on the VXI-MXI.
2-8
Control
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Chapter 2