3.3.5.5.2 AVR TPI Pinout

For a legacy application PCB which includes an AVR with the TPI interface, the pinout as shown in the figure below may have been used.

Figure 3-13. Legacy TPI Header Pinout
Table 3-9. TPI Pin Mapping
MPLAB PICkit Basic PinAdapter Board AVR JTAG PinLegacy TPI PinNameDescription
17 or 8 (NC)
24 (VDD/VTG)2VCC/VTGTarget voltage (reference voltage).
32 or 10 (GND)6GNDGround
43 (TDO)1DATATPI Data
51 (TCK)3CLOCKTPI Clock
66 (RESET/TAUX)5RESETReset the device.
79 (TDI)
85 (TMS)