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Distributor of Equinox Technologies: Excellent Integrated System Limited
Datasheet of ISPNANO S3 KIT - ISP PORTABLE PROGRAMMER
Contact us: [email protected] Website: www.integrated-circuit.com
ISPnano Series Programmer - User Manual – V1.11 – 12
th
May 2011
89
1.5 Atmel AT91SAM7 microcontroller - JTAG connections
The schematic below shows the connections required to In-System Program (ISP) an Atmel
AT91SAM7 ARM7 microcontroller via the JTAG Interface.
The table below details the connections for programming Atmel AVR microcontrollers via the JTAG
Interface.
Pin
No
Programmer
Pin name
Programmer
Input /
Output
Connect to
pin on
Target System
Notes
1 + 2
TARGET_VCC
P
TARGET_VCC
Target VCC
3 + 4
TARGET_EXT_VCC P
See notes.
Target External VCC
5 + 6
PROG_GND
P
Signal GROUND
(0V)
Signal Ground Connection
10
Programmer I/O5
I/O
Spare I/O
11
Programmer I/O4
I/O
JTAG – TMS
12
Programmer I/O3
I/O
JTAG - TCK
13
Programmer I/O2
I/O
JTAG - TDO
14
Programmer I/O1
I/O
JTAG - TDI
16
PROG_RESET
O
RESET
Target RESET control pin
Please refer to Application Note AN122 for detailed instructions of how to program an Atmel
AT91SAM7 microcontroller.
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