NB2DSK01 - FPGA Daughter Board Connectors
The plug-in daughter boards are mounted onto the NB2DSK01 motherboard using three 100-way Female docking connectors – designated HDR_T1, HDR_L1 and HDR_B1. These are individually referred to as 'NANOCONNECT' interfaces, and collectively as the daughter board connectors.
Figure 1. Daughter board connectors ('NANOCONNECT' interfaces) - the
docking point for a satellite daughter board.
The daughter boards allow the NB2DSK01 to be used with a variety of target FPGAs. Daughter boards may be constructed with any configuration that matches the pinout requirements of HDR_T1, HDR_L1 and HDR_B1.
HDR_T1 and HDR_B1 are wired such that all Altium daughter boards are compatible with both the NanoBoard-NB1 and the Desktop NanoBoard NB2DSK01.
The NB2DSK01 daughter board connectors map I/O resources on the NB2DSK01 motherboard directly to the pins of the daughter board FPGA device, as if that device were mounted directly on the NB2DSK01.
For more information on daughter boards, see Daughter Boards.
Resources on the plug-in peripheral boards are also made available to the daughter board FPGA device, with the corresponding I/O pins from each peripheral board connector wired directly to pins of the daughter board connectors. For more information, see Peripheral Boards.
Location on Board
The daughter board connectors (HDR_T1, HDR_L1, HDR_B1) are located on the component side of the board, to the left of the TFT LCD panel and above the two 20-pin user headers – 'User Header A' (UH1) and 'User Header B' (UH2).
Schematic Reference
The daughter board connectors can be found on Sheet 45 (NB2_DBCON.SchDoc, entitled 3-Way Daughter-Board Socket) of the motherboard schematics.