3.3.7.2 SPI Trace Connections
To use SPI trace, use the PIC MCUs - ICSP Adapter Board with an 8-pin connection. The communications connection will carry the trace information using the TMS/TDI pins. However, the selected device must have the SPI feature. If it does not, one of the other trace methods may be used.
For more on this type of trace, see SPI Trace.