ROB=0, ACB=000
GPIO Attribute Checker Register
ACB | Attribute Check Byte 0 (000): User nonsecure: Read + Write; User Secure: Read + Write; Privileged Secure: Read + Write 1 (001): User nonsecure: Read; User Secure: Read + Write; Privileged Secure: Read + Write 2 (010): User nonsecure: None; User Secure: Read + Write; Privileged Secure: Read + Write 3 (011): User nonsecure: Read; User Secure: Read; Privileged Secure: Read + Write 4 (100): User nonsecure: None; User Secure: Read; Privileged Secure: Read + Write 5 (101): User nonsecure: None; User Secure: None; Privileged Secure: Read + Write 6 (110): User nonsecure: None; User Secure: None; Privileged Secure: Read 7 (111): User nonsecure: None; User Secure: None; Privileged Secure: None |
ROB | Read-Only Byte 0 (0): Writes to the ACB are allowed. 1 (1): Writes to the ACB are ignored. |