User's Manual

Table Of Contents
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WHAT’S ON THE MODULE?
JTAG 20-pin header connector, P2
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JTAG 20-pin header connector, P2
The JTAG connector is a standard, male, ARM 20-pin pinout in a miniature
connector, with a 50-mil pitch. A JTAG adapter, which ships with each Jump Start
kit, expands the JTAG connector to a 100 mil pitch. Use the included JTAG adapter
to connect the debugger.
The JTAG connector on the module is keyed, as are the two connectors on the JTAG
adapter, which means there is only one way to attach ribbon cables to the module
and JTAG adapter. For details, see “JTAG adapter assembly” on page 16.
Pin assignment
JTAG header connector, P2
Pin Signal Description
1 3.3V ARM9 I/O supply
2 3.3V ARM9 I/O supply
3 TRST# Test mode reset
4 GND Ground
5 TDI Test data in
6 GND Ground
7 TMS Test mode select
8 GND Ground
9TCK Test clock
10 GND Ground
11 RTCK Returned test clock (ARM core only)
12 GND Ground
13 TDO Test data out
14 GND Ground
15 DBSRST# System reset
16 GND Ground