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12.5.10. Authentication Status Register

The Authentication Status Register is a read-only register that reads the current values of the configuration inputs that determine the debug permission level.

Figure 12.27 shows the bit arrangement of the Authentication Status Register.

Figure 12.27. Authentication Status Register format

Figure 12.27. Authentication Status Register format

Table 12.42 shows how the bit values correspond with the Authentication Status Register functions.

Table 12.42. Authentication Status Register bit functions
BitsFieldValueFunction

[31:8]

-

-

RAZ
[7]Secure noninvasive debug enabled

b1

Secure noninvasive debug enable field

[6]

(DBGEN || NIDEN) && (SPIDEN || SPNIDEN)

[5]

Secure invasive debug enabled

b1

Secure invasive debug enable field

[4]

DBGEN && SPIDEN

[3]

Nonsecure noninvasive debug enabled

b1

Nonsecure noninvasive debug enable field

[2]

DBGEN || NIDEN

[1]

Nonsecure invasive debug enabled

b1

Nonsecure invasive debug enable field

[0]

DBGEN