UM10503
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User manual
Rev. 2.1 — 10 December 2015
1377 of 1441
NXP Semiconductors
UM10503
Chapter 51: LPC43xx/LPC43Sxx JTAG, Serial Wire Debug (SWD), and
The ARM Cortex-M0 coprocessor supports JTAG debug. A standard ARM
Cortex-compliant debugger can debug the ARM Cortex-M4 and the ARM Cortex-M0
cores separately or both cores simultaneously.
Remark:
In order to debug the ARM Cortex-M0, release the M0 reset by software in the
RGU block.
Remark:
Only enabled ARM Cortex-M0 cores are visible in the debug tool.
Fig 195. Multi-core debug configuration
ARM
Cortex-M0APP
ARM
Cortex-M4
TCK
DBGEN = HIGH
TMS
TRST
TDI
TDO
TDO
TDO
DBGEN
RESET = HIGH
RESET
TCK
TMS
TRST
TDI
TCK
TMS
TRST
TDI
JTAG ID = 0x0BA0 1477
ARM
Cortex-M0SUB
TDO
TCK
TMS
TRST
TDI
JTAG ID = 0x0BA0 1477
JTAG ID = 0x4BA0 0477
LPC43xx