3.5. Detailed register descriptions

Table 3.3 lists the ETM registers. This section describes each of the registers.


  • In the register bit description tables, the Version column indicates:

    • differences in how the bit is used in different architecture versions

    • the first version of the architecture that uses the bit.

  • Register bits are reserved in architecture versions earlier than the first use shown in the Version column. You must treat these reserved bits as read unknown and Write-As-Zero, unless the register description indicates otherwise.

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