Figure 14-1 Etm Block Diagram - ARM Cortex-M3 Technical Reference Manual

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CM3ETM
CM3Trigger
Triggers
EtmResCntrl
CPU I/F
CM3Trace
CM3Etm
APB I/F
ATB
from
ITM
14.1.2
ETM inputs and outputs
ARM DDI 0337G
Unrestricted Access
CM3
CM3
EtmTrcEn
CM3
EtmTrigEvt
CM3Etm
Control
CM3Etm
Fifo
CM3Etm
FifoPeek
CM3Etm
APBIf
TraceOut
This section describes the ETM inputs and outputs:
ETM core interface. See Table 14-1 on page 14-4.
Miscellaneous configuration inputs. See Table 14-2 on page 14-4.
Trace port signals. See Table 14-2 on page 14-4.
Other signals. See Table 14-4 on page 14-5.
Clocks and resets. See Table 14-5 on page 14-6.
Copyright © 2005-2008 ARM Limited. All rights reserved.
CM3 TPIU
TPIU
TPIU
Formatter
FIFO
Non-Confidential
Embedded Trace Macrocell
TRACEDATA [3:0]
TPIU
Output
TRACECLK
Stage
SWV
TRACECLKIN

Figure 14-1 ETM block diagram

14-3

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