3.3
Connecting to an aWire Target
The aWire interface requires only one data line in addition to V
line, although the debugger uses the JTAG TDO line as the data line.
The recommended pinout for the 6-pin aWire connector is shown in
Connection to a 6-pin 100-mil aWire Header
Use the 6-pin 100-mil tap on the flat cable (included in some kits) to connect to a standard 100-mil aWire header.
Connection to a 6-pin 50-mil aWire Header
Use the adapter board (included in some kits) to connect to a standard 50-mil aWire 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. Three connections are required, as described in the table below.
Table 3-2. Atmel-ICE aWire Pin Mapping
Atmel-ICE AVR PORT Pins
Pin 1 (TCK)
Pin 2 (GND)
Pin 3 (TDO)
Pin 4 (VTG)
Pin 5 (TMS)
Pin 6 (nSRST)
Pin 7 (Not connected)
Pin 8 (nTRST)
Pin 9 (TDI)
Pin 10 (GND)
3.4
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 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
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2020 Microchip Technology Inc.
™
products.
Programmers and Debuggers
and GND. On the target, this line is the nRESET
CC
Figure
4-8.
Target Pins
Mini-Squid Pin
GND
DATA
VTG
Figure
4-11.
User Guide
Connecting the Atmel-ICE
aWire Pinout
1
2
6
3
1
4
2
5
6
7
8
9
0
DS50002999A-page 14
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