Datasheet

1015
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
41.7.20 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 996
“ADC Channel Sequence 1 Register” on page 999
“ADC Channel Sequence 2 Register” on page 1000
“ADC Channel Enable Register” on page 1001
“ADC Channel Disable Register” on page 1002
“ADC Extended Mode Register” on page 1009
“ADC Compare Window Register” on page 1010
“ADC Channel Gain Register” on page 1011
“ADC Channel Offset Register” on page 1012
“ADC Analog Control Register” on page 1014
• 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