LCK4=B_0x0, LCK15=B_0x0, LCK3=B_0x0, LCK7=B_0x0, LCK6=B_0x0, LCK9=B_0x0, LCK12=B_0x0, LCK14=B_0x0, LCK5=B_0x0, LCK0=B_0x0, LCK2=B_0x0, LCK11=B_0x0, LCK8=B_0x0, LCK13=B_0x0, LCKK=B_0x0, LCK10=B_0x0, LCK1=B_0x0
GPIO port configuration lock register
| LCK0 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK1 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK2 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK3 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK4 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK5 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK6 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK7 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK8 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK9 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK10 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK11 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK12 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK13 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK14 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCK15 | Port x lock I/O pin y (y = 15 to 0) These bits are read/write but can only be written when the LCKK bit is 0. 0 (B_0x0): Port configuration not locked 1 (B_0x1): Port configuration locked |
| LCKK | Lock key This bit can be read any time. It can only be modified using the lock key write sequence. LOCK key write sequence: WR LCKR[16] = 1 + LCKR[15:0] WR LCKR[16] = 0 + LCKR[15:0] WR LCKR[16] = 1 + LCKR[15:0] RD LCKR RD LCKR[16] = 1 (this read operation is optional but it confirms that the lock is active) Note: During the LOCK key write sequence, the value of LCK[15:0] must not change. Any error in the lock sequence aborts the lock. After the first lock sequence on any bit of the port, any read access on the LCKK bit returns 1 until the next MCU reset or peripheral reset. 0 (B_0x0): Port configuration lock key not active 1 (B_0x1): Port configuration lock key active. The GPIOx_LCKR register is locked until the next MCU reset or peripheral reset. |