Datasheet

677
11011B–ATARM–21-Feb-12
SAM3N
677
11011B–ATARM–21-Feb-12
SAM3N
33.7.17 ADC Write Protect Mode Register
Name: ADC_WPMR
Address: 0x400380E4
Access: Read-write
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x414443 (“ADC” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x414443 (“ADC” in ASCII).
Protects the registers:
“ADC Mode Register” on page 661
“ADC Channel Sequence 1 Register” on page 663
“ADC Channel Sequence 2 Register” on page 664
“ADC Channel Enable Register” on page 665
“ADC Channel Disable Register” on page 666
“ADC Extended Mode Register” on page 674
“ADC Compare Window Register” on page 675
• WPKEY: Write Protect KEY
Should be written at value 0x414443 (“ADC” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
31 30 29 28 27 26 25 24
WPKEY
23 22 21 20 19 18 17 16
WPKEY
15 14 13 12 11 10 9 8
WPKEY
76543210
———————WPEN