The adapter has a 12-pin (2x6) 0.1" female header that plugs into the Lattice HW-USBN-2B programmer and supplies a 6-pin (2x3) 0.1" male box header suitable for use with Tag-Connect TC2030-IDC Plug-of-NailsTM Cables, eliminating the need for a physical connector on each and every target PCB.
By default, the TC-LATTICE adapter comes fitted with a 500 Ω resistor connected between VCC and GND. This resolves the issue of the Lattice HW-USBN-2B unexpectedly raising VCC on low-power targets and eliminates the need for the resistor to be fitted to each of your target PCBs, see:
http://www.latticesemi.com/en/Support/AnswerDatabase/2/2/0/2205
| TC2030 Pin Number | Signal |
|---|---|
| 1 | VCC* |
| 2 | TMS |
| 3 | TDI/SI |
| 4 | TCK/SCLK |
| 5 | GND* |
| 6 | TDO/SO |
* 500 Ω Resistor fitted on back of Adapter PCB between VCC and GND