What is the difference between PXIe and AXIe?
The AXIe standard provides the maximum scalability to address a range of platforms including general purpose rack-and-stack, modular systems, semiconductor ATE systems, bench top, and module plug-ins. AXIe leverages existing standards from ATCA, PXI™, LXI™ and IVI®. AXIe removes the division between instruments and systems. The major difference is in board space density and power per slot. Other specifics can be found in the table below:
| Feature | AXIe | PXIe |
|---|---|---|
| Chassis base | AdvancedTCA | cPCI/cPCIe |
|
PCIe maximum data bandwidth (Maximum Gen 2.0): Single peripheral slot to backplane All peripheral slots to system slot/embedded controller |
2 GB/s 26 GB/s |
4 GB/s 8 GB/s |
| PCIe fabric | Yes | Yes |
| LAN backplane | Yes | No |
| Local bus |
18 pairs req 62 pairs opt |
1 line (13 PXI) |
| Triggers |
Bidirectional Star Trigger 13 signal MLVDS bus |
Star Trigger(1xTTL, 3x Diff per slot) 8 Signal TTL bus |
| Frequency Reference & Sync | 100MHz, yes | 10MHz, 100MHz, yes |
| Power per slot | 200 W | 30 W |
| Board space per slot (higher density, flexibility) | 900 cm2 | 160 cm2 |
| Modules available | New | ~1100 |