ATSAM3S-EK Atmel, ATSAM3S-EK Datasheet - Page 1020
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ATSAM3S-EK
Manufacturer Part Number
ATSAM3S-EK
Description
KIT EVAL FOR ATSAM3S4C
Manufacturer
Atmel
Series
SAM3Sr
Type
MCUr
Specifications of ATSAM3S-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex-M3
Kit Contents
Board
Features
TFT Colour LCD Display, SD/MMC Interface
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
For Use With/related Products
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3S-EK
Manufacturer:
Atmel
Quantity:
135
- Current page: 1020 of 1118
- Download datasheet (24Mb)
40.6.8
Write Protection Registers
In order to provide security to the DACC, a write protection system has been implemented.
The write protection mode prevents the writing of certain registers. When this mode is enabled and one of
the protected registers is written, an error is generated in the
DACC Write Protect Status Register
and the
register write request is canceled. When a write protection error occurs, the WPROTERR flag is set and the
address of the corresponding canceled register write is available in the WPROTADRR field of the
DACC
Write Protect Status
Register.
Due to the nature of the write protection feature, enabling and disabling the write protection mode requires
the use of a security code. Thus when enabling or disabling the write protection mode the WPKEY field of
the
DACC Write Protect Mode Register
must be filled with the “DAC” ASCII code (corresponding to
0x444143) otherwise the register write is canceled.
The protected registers are:
DACC Mode Register
DACC Channel Enable Register
DACC Channel Disable Register
DACC Analog Current Register
SAM3S Preliminary
1020
6500C–ATARM–8-Feb-11
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