49.6.24 ISI Write Protection Mode Register

Name: ISI_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 
        WPEN 
Access R/W 
Reset 0 

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

ValueNameDescription
0x495349 PASSWD

Writing any other value in this field aborts the write operation of the WPEN bit.

Always reads as 0.

Bit 0 – WPEN Write Protection Enable

ValueDescription
0

Disables the write protection if WPKEY corresponds to 0x495349 (“ISI” in ASCII).

1

Enables the write protection if WPKEY corresponds to 0x495349 (“ISI” in ASCII).