SAM3N0A Atmel Corporation, SAM3N0A Datasheet - Page 353
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
SAM3N0A
Manufacturer Part Number
SAM3N0A
Description
Manufacturer
Atmel Corporation
- Current page: 353 of 752
- Download datasheet (17Mb)
24.14 Write Protection Registers
11011A–ATARM–04-Oct-10
To prevent any single software error that may corrupt PMC behavior, certain address spaces
can be write protected by setting the WPEN bit in the
(PMC_WPMR).
If a write access to the protected registers is detected, then the WPVS flag in the PMC Write
Protect Status Register (PMC_WPSR) is set and the field WPVSRC indicates in which register
the write access has been attempted.
The WPVS flag is reset by writing the PMC Write Protect Mode Register (PMC_WPMR) with the
appropriate access key, WPKEY.
The protected registers are:
“PMC System Clock Enable Register” on page 355
“PMC System Clock Disable Register” on page 355
“PMC Peripheral Clock Enable Register” on page 357
“PMC Peripheral Clock Disable Register” on page 358
“PMC Clock Generator Main Oscillator Register” on page 360
“PMC Clock Generator PLL Register” on page 363
“PMC Master Clock Register” on page 364
“PMC Programmable Clock Register” on page 365
“PMC Fast Startup Mode Register” on page 371
“PMC Fast Startup Polarity Register” on page 372
“PMC Oscillator Calibration Register” on page 376
“PMC Write Protect Mode Register”
SAM3N
353
Related parts for SAM3N0A
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![SAM3N](/images/no-image3.png)
Part Number:
Description:
Cortex M3 Flash Microcontroller Converges Performance and Simplicity
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
![ATF22V10B-25PC](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
![AT89C51ED2-IM](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
![AT24C01](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet: