The National Instruments AT-MXI-2 is an external MXI-2 controller board for VXI/VME systems. NI documents it as the computer-side interface in the VXI/VME-AT4000 interface kit.
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Key product information and technical features.
The AT-MXI-2 provides an external controller connection to VXI/VME mainframes through MXI-2. NI's multiple-mainframe configuration guide identifies it as an MXIbus system controller used with VXI-MXI-2 or VME-MXI-2 mainframe interfaces.
Integration requires attention to host resources and the NI-VXI software environment. NI provides Windows 95 installation instructions covering I/O space, memory, interrupt, and DMA allocation, plus separate notes explaining software changes specific to the AT-MXI-2.
Verified product specifications.
| Controller function | External MXIbus system controller |
|---|---|
| Required contiguous I/O address space | 16 bytes |
| Minimum memory address space | 32 KB |
| Selectable DMA channels | 1, 3, 5, 6, 7 |
| Selectable IRQ levels | 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15 |
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Manufacturer
External controller link for VXI/VME mainframes
External MXIbus system controller board
VXI-MXI-2 for VXI mainframes; VME-MXI-2 for VME mainframes in the documented configuration.
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Product-specific answers based on available technical information.
It is an external MXI controller board. In NI's documented multiple-mainframe arrangement, it serves as the MXIbus system controller.
NI documents configurations using VXI-MXI-2 interfaces in VXI mainframes and VME-MXI-2 interfaces in VME mainframes. Follow the guide's slot and logical-address requirements.
NI documents general compatibility with applications following its NI-VXI programming guidelines, but identifies exceptions involving low-level access. Applications using VXIpeek() or VXIpoke() may require recompilation, and directly manipulated context bits may need changes.