The NcPCI-XLINK offers a MicroTCA system access to cPCI I/O cards. The NcPCI-XLINK is plugged into slot 1 of any cPCI system and, via a PCI Express cable up to 7 meters long, the front panel is connected to the NAMC-XLINK. The MicroTCA system then acts as the master of the cPCI I/O cards.

No modification of the application or drivers is needed.

XLINK-Family Overview:

Functional Blocks

Hardware based on cPCI

The NcPCI-XLINK is based on a high performance 32-bit, 33 MHz 3U cPCI card compatible with a cPCI system slot 1 supporting cPCI standards with 3.3V signalling. The cPCI interface is 5V tolerant.

PCI Express External Cable Connector

The NcPCI-XLINK connects the PCI Express External Cable Connector with the cPCI backplane using programmable buffer circuitry and a PCIe to PCI bridge device. The NAMC-XLINK provides master functions such as clock and management signals.

The NAMC-XLINK has to identify the slave interface via firmware after Power-Up which, in this case, is the NcPCI-XLINK. It is important to power up the cPCI (slave) system first. A rescan of the cable link can be performed at any time with user software.

EEPROM (type 24C02)

The EEPROM is an I2C device located on the NcPCI-XLINK connecting to the PCIe to PCI bridge via I2C bus. This EEPROM (type 24C02) is mostly used for storing setup imformation for the PCIe to PCI bridge after Power-Up, but also for storing board-specific information. The EEPROM's address is 0x0. By default, the I2C device 24C02 is not programmed. The bridge initializes with default register values.


The NcPCI-XLINK is member of the XLINK-Family which enables the connection of different system platforms via a PCI Express External Cable Interface to a MicroTCA system.

Other XLINK Board Combinations