Knowledge Base Article
Answer: PSoC 4 supports only Serial Wire Debug (SWD) interface which needs two pins: SWDIO and SWDCLK. PSoC3/5LP® supports both SWD and JTAG interfaces.
The MiniProg3 5- and 10-pin debug connectors provide support for SWD interface modes. The pin mapping for the SWD interface mode is shown in the following figures. Note that Vtarg (pin #1) must be connected to VDDD supply and XRES (Pin#3 for 5-pin, Pin#10 for 10-pin) must be connected to the device reset pin.
For more information, refer to the chapter “Program and Debug Interface” in the TRM.
Debug Connector (5-pin) SWD