3.4 Connecting to a PDI Target

The recommended pinout for the 6-pin PDI connector is shown in Figure 4-11.

Connection to a 6-pin 100-mil PDI Header

Use the 6-pin 100-mil tap on the flat cable (included in some kits) to connect to a standard 100-mil PDI header.

Connection to a 6-pin 50-mil PDI Header

Use the adapter board (included in some kits) to connect to a standard 50-mil PDI header.

Connection to a Custom 100-mil Header

The 10-pin mini-squid cable should be used to connect between the Atmel-ICE AVR connector port and the target board. Four connections are required, as described in the table below.

Important:

The pinout required is different from the JTAGICE mkII JTAG probe, where PDI_DATA is connected to pin 9. The Atmel-ICE is compatible with the pinout used by the Atmel-ICE, JTAGICE3, AVR ONE!, and AVR Dragon products.

Table 3-3. Atmel-ICE PDI Pin Mapping
Atmel-ICE AVR PORT PinTarget PinsMini-Squid PinMicrochip STK600 PDI Pinout
Pin 1 (TCK)1
Pin 2 (GND)GND26
Pin 3 (TDO)PDI_DATA31
Pin 4 (VTG)VTG42
Pin 5 (TMS)5
Pin 6 (nSRST)PDI_CLK65
Pin 7 (not connected)7
Pin 8 (nTRST)8
Pin 9 (TDI)9
Pin 10 (GND)0