UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
1210 of 1269
NXP Semiconductors
UM10503
Chapter 48: LPC43xx JTAG, Serial Wire Debug (SWD), and trace
Connections from a target board to the debugger can vary. Selecting a debug connector
to add to a new board design depends on the debug tools that will be used.
48.6.1 ARM Standard JTAG connector (20-pin)
shows a standard JTAG connector. The ARM Standard JTAG Connector
provides support for Serial Wire and JTAG interface modes in a 20-pin (0.1") connector. It
can be used to access all SWD, SWV, and JTAG signals.
48.6.2 Cortex debug connector (10-pin)
shows the Cortex debug connector (10-pin). This connector provides support
for Serial Wire and JTAG in a very small connector. The 10-pin Cortex debug connector
can access to all SWD, SWV, and JTAG signals.
Fig 178. ARM Standard JTAG Connector
1
3
5
7
9
11
13
15
17
19
2
4
6
8
10
12
14
16
18
20
TRST
TDI
TMS
TCLK
TDO
RESET
n.c
n.c.
3.3 V
3.3 V
3.3 V
10 kΩ to 100 kΩ