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3.3.36. Authentication Status Register

The AUTHSTATUS Register characteristics are:

Purpose

Reports what functionality is currently permitted by the authentication interface.

Configurations

Present in all configurations.

Figure 3.36 shows the AUTHSTATUS Register bit assignments.

Figure 3.36. AUTHSTATUS Register bit assignments

Figure 3.36. AUTHSTATUS Register bit assignments

Table 3.37 shows the AUTHSTATUS Register bit assignments.

Table 3.37. AUTHSTATUS Register bit assignments
BitsNameFunction
[31:8]Reserved

Reserved.

[7:6]SNID

Indicates the security level for secure non-invasive debug.

0x0

Functionality not implemented or controlled elsewhere.

[5:4]SID

Indicates the security level for secure invasive debug.

0x0

Functionality not implemented. This return value occurs when the TMC is configured as an ETB or ETF.

0x2

Functionality disabled. This return value occurs when the TMC is configured as an ETR, and SPIDEN is LOW or DBGEN is LOW.

0x3

Functionality enabled. This return value occurs when the TMC is configured as an ETR, and SPIDEN and DBGEN are HIGH.

[3:2]NSNID

Indicates the security level for non-secure non-invasive debug.

0x0

Functionality not implemented or controlled elsewhere.

[1:0]NSID

Indicates the security level for non-secure invasive debug.

0x0

Functionality not implemented. This return value occurs when the TMC is configured as an ETB or ETF.

0x2

Functionality disabled. This return value occurs when the TMC is configured as an ETR, and DBGEN is LOW.

0x3

Functionality enabled. This return value occurs when the TMC is configured as an ETR, and DBGEN is HIGH.


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