Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
1104
Figure 43-2.
Conversion Sequence
43.6.8 Register Write Protection
To prevent any single software error from corrupting <IP_acronym> behavior, certain registers in the address
(DACC_WPMR).
If a write access to a write-protected register is detected, the WPVS flag in the
If a write access to a write-protected register is detected, the WPVS flag in the
(DACC_WPSR) is set and the field WPVSRC indicates the register in which the write access has been
attempted.
The WPVS bit is automatically cleared after reading the DACC_WPSR.
The following registers can be write-protected:
The WPVS bit is automatically cleared after reading the DACC_WPSR.
The following registers can be write-protected:
MCK
Write USER_SEL
field
Selected Channel
Write DACC_CDR
DAC Channel 0
Output
DAC Channel 1
Output
EOC
Read DACC_ISR
Select Channel 0
Channel 0
Channel 1
Data 0
Data 1
Data 2
Data 0
Data 1
Data 2
Select Channel 1
None
TXRDY
CDR FIFO not full