Use the settings to enable User Row programming.
Set the desired values for the NVM User Row in 'User Row [31-0]' and 'User Row [63-32]'.
Select which bit of NVM user row to program and verify by setting 'User Row Mask [31-0]'
and 'User Row Mask [63-32]' by setting the corresponding bit to '1'.

Example: If NVM User Row[31:0] Mask = 0xFE01 FF77. It means the bit3, bit7 and
bit[26-17] of the NVM User Row will not be changed during programming.
Other bits will be programed with data from NVM User Row[31:0].

Register definition - NVM User Row Mapping :
  Bit        Name                            Default Settings:    
  2:0        BOOTPROT                        0x7
   3         Reserved                        Do not modify
  6:4        EEPROM                          0x7
   7         Reserved                        Do not modify
 13:8        BOD33 Level                     0x7
  14         BOD33 Enable                    0x1
 16:15       BOD33 Action                    0x1
 24:17       Reserved                        Do not modify
  25         WDT Enable                      0x0
  26         WDT Always-On                   0x0
 30:27       WDT Period                      0xB
 34:31       WDT Window                      0xB
 38:35       WDT EWOFFSET                    0xB
  39         WDT WEN                         0x0
  40         BOD33 Hysteresis                0x1
 47-41       Reserved                        Do not modify
 63:48       LOCK                            0xFFFF

Use the settings to enable Security.
Enable ERASE to remove any protection and security.
