0x07 Seven-bit trace ID implemented.
[15:12]
Reserved, RES0.
NUMEXTINSEL, [11:9]
Number of external input selectors implemented:
0b100 Four external input selectors implemented.
NUMEXTIN, [8:0]
Number of external inputs implemented:
0x1E 30 external inputs implemented.
The TRCIDR5 can be accessed through the external debug interface, offset 0x1F4.
C11 ETM registers
C11.37 ID Register 5
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C11-783
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