...........continued
Power Debugger AVR PORT Pins
Target Pins
Mini-Squid Pin
SPI Pinout
Pin 10 (GND)
0
4.4.5
PDI
The Program and Debug Interface (PDI) is a Microchip proprietary interface for external programming and on-chip
debugging of a device. PDI Physical is a 2-pin interface providing a bidirectional half-duplex synchronous
communication with the target device.
When designing an application PCB, which includes an Microchip AVR with the PDI interface, the pinout shown in the
figure below should be used. One of the 6-pin adapters provided with the Power Debugger kit can then be used to
connect the Power Debugger probe to the application PCB.
Figure 4-11. PDI Header Pinout
PDI_DATA
PDI_CLK
VCC
GND
1 2
PDI
(NC)
(NC)
4.4.6
Connecting to a PDI Target
The recommended pinout for the 6-pin PDI connector is shown in
.
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 Power Debugger 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 Power Debugger is compatible with the pinout used by the Atmel-ICE, JTAGICE3, AVR ONE!, and
AVR Dragon
™
products.
Table 4-12. Power Debugger PDI Pin Mapping
Power Debugger AVR PORT Pin
Target Pins
Mini-Squid Pin
Microchip STK600 PDI Pinout
Pin 1 (TCK)
1
Pin 2 (GND)
GND
2
6
Pin 3 (TDO)
PDI_DATA
3
1
Pin 4 (VTG)
VTG
4
2
Pin 5 (TMS)
5
Pin 6 (nSRST)
PDI_CLK
6
5
Pin 7 (not connected)
7
Pin 8 (nTRST)
8
Pin 9 (TDI)
9
Power Debugger
On-chip Debugging
©
2020 Microchip Technology Inc.
User Guide
DS40002201A-page 67
