31.2.23.16 CFM Page Write Protect Register

Table 31-19. Register Bit Attribute Legend
SymbolDescriptionSymbolDescriptionSymbolDescription
RReadable bitHCCleared by Hardware(Grey cell)Unimplemented
WWritable bitHSSet by HardwareXBit is unknown at Reset
KWrite to clearSSoftware settable bit——
Name: CWP
Offset: 0x0078
Reset: 0x00000505
Property: PAC Write Protection, KEY.KEY[7:0] = CFGKEY to unlock when unprotected

Bit 3130292827262524 
      BC2WPLOCK UC2WPLOCK 
Access R/WR/W 
Reset 00 
Bit 2322212019181716 
      BC1WPLOCK UC1WPLOCK 
Access R/WR/W 
Reset 00 
Bit 15141312111098 
      BC2WP UC2WP 
Access R/WR/W 
Reset 11 
Bit 76543210 
      BC1WP UC1WP 
Access R/WR/W 
Reset 11 

Bit 26 – BC2WPLOCK Boot Configuration Page 2 Write Protect Lock Bit

Writing a 0 to a bit has no effect.

Writing a 1 to a bit will enable the corresponding lock.

Note:
  1. This field can be set at the same time as writing to BC2WP.
  2. This field can only be modified when BC2WPLOCK=0, STATUS.BUSY=0 and KEY.KEY=<CFGKEY Value>.
ValueDescription
1BC2WP & BC2WPLOCK fields are Locked and cannot be modified
0BC2WP & BC2WPLOCK fields are NOT Locked and can be modified

Bit 24 – UC2WPLOCK User Configuration Page 2 Write Protect Lock Bit

Writing a 0 to a bit has no effect.

Writing a 1 to a bit will enable the corresponding lock.

Note:
  1. This field can be set at the same time as writing to UC2WP.
  2. This field can only be modified when UC2WPLOCK=0, STATUS.BUSY=0 and KEY.KEY=<CFGKEY Value>.
ValueDescription
1UC2WP & UC2WPLOCK fields are Locked and cannot be modified
0UC2WP & UC2WPLOCK fields are NOT Locked and can be modified

Bit 18 – BC1WPLOCK Boot Configuration Page 1 Write Protect Lock Bit

Writing a 0 to a bit has no effect.

Writing a 1 to a bit will enable the corresponding lock.

Note:
  1. This field can be set at the same time as writing to BC1WP.
  2. This field can only be modified when BC1WPLOCK=0, STATUS.BUSY=0 and KEY.KEY=<CFGKEY Value>.
ValueDescription
1BC1WP & BC1WPLOCK fields are Locked and cannot be modified
0BC1WP & BC1WPLOCK fields are NOT Locked and can be modified

Bit 16 – UC1WPLOCK User Configuration Page 1 Write Protect Lock Bit

Writing a 0 to a bit has no effect.

Writing a 1 to a bit will enable the corresponding lock.

Note:
  1. This field can be set at the same time as writing to UC1WP.
  2. This field can only be modified when UC1WPLOCK=0, STATUS.BUSY=0 and KEY.KEY=<CFGKEY Value>.
ValueDescription
1UC1WP & UC1WPLOCK fields are Locked and cannot be modified
0UC1WP & UC1WPLOCK fields are NOT Locked and can be modified

Bit 10 – BC2WP Boot Configuration Page 2 Write Protect Bit

Note:
  1. This field can only be modified when BC2WPLOCK=0, STATUS.BUSY=0 and KEY.KEY=<CFGKEY Value>.
ValueDescription
1Erase and Write Protection for Boot Configuration Page 2 is Enabled
0Erase and Write Protection for Boot Configuration Page 2 is Disabled

Bit 8 – UC2WP User Configuration Page 2 Write Protect Bit

Note:
  1. This field can only be modified when UC2WPLOCK=0, STATUS.BUSY=0 and KEY.KEY=<CFGKEY Value>.
ValueDescription
1Erase and Write Protection for User Configuration Page 2 is Enabled
0Erase and Write Protection for User Configuration Page 2 is Disabled

Bit 2 – BC1WP Boot Configuration Page 1 Write Protect Bit

Note:
  1. This field can only be modified when BC1WPLOCK=0, STATUS.BUSY=0 and KEY.KEY=<CFGKEY Value>.
ValueDescription
1Erase and Write Protection for Boot Configuration Page 1 is Enabled
0Erase and Write Protection for Boot Configuration Page 1 is Disabled

Bit 0 – UC1WP User Configuration Page 1 Write Protect Bit

Note:
  1. This field can only be modified when UC1WPLOCK=0, STATUS.BUSY=0 and KEY.KEY=<CFGKEY Value>.
ValueDescription
1Erase and Write Protection for User Configuration Page 1 is Enabled
0Erase and Write Protection for User Configuration Page 1 is Disabled