Optional Debugging Connector ============================ Debug Connector Signal Assignment --------------------------------- +--------------------+---------+---------------------------------------------------------------+-------+---------+ | Pin | Signal | Description | type | I/O | +====================+=========+===============================================================+=======+=========+ | 1 | MFG_NC1 | Do not connect on the carrier board. | | | +--------------------+---------+ +-------+---------+ | 3 | MFG_NC0 | These pins are reserved for manufacturing purposes. | | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 5 | BOOT[1] | Module specific boot mode, refer to the processor datasheet. | VDDIO | I | +--------------------+---------+ Boot from flash is selected, if these pins are not connected. +-------+---------+ | 7 | BOOT[0] | (N/A on TX28) | VDDIO | I | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 9 | GND | | | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 11 | #TRST | | VDDIO | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 13 | TMS | | VDDIO | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 15 | TDO | | VDDIO | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 17 | TDI | | VDDIO | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 19 | GND | | | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 21 | TCK | | VDDIO | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 23 | GND | | | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 25, 27, 29 | NC | | | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ | 2, 4, 6 ... 28, 30 | GND | | | | +--------------------+---------+---------------------------------------------------------------+-------+---------+ Debug connector location ------------------------ .. figure:: images/debug_connector_location.png :alt: Mates with Samtec FSI - 3mm Height, One Piece Interface, part no. FSI-115-03-G-D-AD The SO-DIMM connector socket height has to be 5.2mm if the debug connector is used. .. figure:: images/debug_connector_location2.png :alt: