67.7.25 TC Write Protection Mode Register

Name: TC_WPMR
Offset: 0xE4
Reset: 0x00000000
Property: Read/Write

Bit 3130292827262524 
 WPKEY[23:16] 
Access WWWWWWWW 
Reset 00000000 
Bit 2322212019181716 
 WPKEY[15:8] 
Access WWWWWWWW 
Reset 00000000 
Bit 15141312111098 
 WPKEY[7:0] 
Access WWWWWWWW 
Reset 00000000 
Bit 76543210 
    FIRSTE WPCRENWPITENWPEN 
Access R/WR/WR/WR/W 
Reset 0000 

Bits 31:8 – WPKEY[23:0] Write Protection Key

ValueNameDescription
0x54494D PASSWD Writing any other value in this field aborts the write operation of the WPEN bit. Always reads as 0.

Bit 4 – FIRSTE First Error Report Enable

ValueDescription
0 The last write protection violation source is reported in TC_SSRx.WPVSRC and the last software control error type is reported in TC_SSRx.SWETYP. The TC_SRx.SECE flag is set at the first error occurrence within a series.
1 Only the first write protection violation source is reported in TC_SSRx.WPVSRC and only the first software control error type is reported in TC_SSRx.SWETYP. The TC_SRx.SECE flag is set at the first error occurrence within a series.

Bit 2 – WPCREN Write Protection Control Enable

ValueDescription
0 Disables the write protection on control register if WPKEY corresponds to 0x54494D (“TIM” in ASCII).
1 Enables the write protection on control register if WPKEY corresponds to 0x54494D (“TIM” in ASCII).

Bit 1 – WPITEN Write Protection Interrupt Enable

ValueDescription
0 Disables the write protection on interrupt registers if WPKEY corresponds to 0x54494D (“TIM” in ASCII).
1 Enables the write protection on interrupt registers if WPKEY corresponds to 0x54494D (“TIM” in ASCII).

Bit 0 – WPEN Write Protection Enable

The Timer Counter clock of the first channel must be enabled to access this register.

See Register Write Protection for a list of registers that can be write-protected and Timer Counter clock conditions.

ValueDescription
0 Disables the write protection if WPKEY corresponds to 0x54494D (“TIM” in ASCII).
1 Enables the write protection if WPKEY corresponds to 0x54494D (“TIM” in ASCII).