User guide

Embedded Trace Macrocell
ARM DDI 0337I Copyright © 2005-2008, 2010 ARM Limited. All rights reserved. 10-4
ID072410 Non-Confidential
Table 10-1 lists the Cortex-M3 resources.
Table 10-1 Cortex-M3 resources
Feature Present on ETM-M3
Architecture version ETMv3.5
Address comparator pairs 0
Data comparators 0
Context ID comparators 0
Memory Map Decoders (MMDs) 0
Counters 1, reduced function counter only
Sequencer No
Start/stop block Yes
Embedded ICE comparators 4
External inputs 2
External outputs 0
Extended external inputs 0
Extended external input selectors 0
FIFOFULL Yes
FIFOFULL level setting Yes
Branch broadcasting Yes
ASIC Control Register No
Data suppression No
Software access to registers Yes
Readable registers Yes
FIFO size 24 bytes
Minimum port size 8 bits
Maximum port size 8 bits
Normal port mode -
Normal half-rate clocking, 1:1 Yes - asynchronous
Demux port mode -
Demux half-rate clocking, 1:2 No
Mux port mode, 2:1 No
1:4 port mode No
Dynamic port mode, including stalling No. Supported by asynchronous port mode.
Coprocessor Register Transfer (CPRT) data No