D9.34 TRCIDR5, ID Register 5
The TRCIDR5 returns how many resources the trace unit supports.
Bit field descriptions
31 025 24 16 15 82728
NUMEXTINTRACEIDSIZE
NUMEXTINSEL
91112
ATBTRIG
30 23 22 21
LPOVERRIDE
NUMSEQSTATE
NUMCNTR
REDFUNCNTR
RES0
Figure D9-32 TRCIDR5 bit assignments
REDFUNCNTR, [31]
Reduced Function Counter implemented:
0 Reduced Function Counter not implemented.
NUMCNTR, [30:28]
Number of counters implemented:
0b010 Two counters implemented.
NUMSEQSTATE, [27:25]
Number of sequencer states implemented:
0b100 Four sequencer states implemented.
RES0, [24]
RES0 Reserved.
LPOVERRIDE, [23]
Low-power state override support:
1 Low-power state override support implemented.
ATBTRIG, [22]
ATB trigger support:
1 ATB trigger support implemented.
TRACEIDSIZE, [21:16]
Number of bits of trace ID:
0x07 Seven-bit trace ID implemented.
RES0, [15:12]
RES0 Reserved.
NUMEXTINSEL, [11:9]
D9 ETM registers
D9.34 TRCIDR5, ID Register 5
100798_0300_00_en Copyright © 2016–2018 Arm Limited or its affiliates. All rights
reserved.
D9-543
Non-Confidential
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