Creating Security Zone - AT32UC3A3128s - FlashVault Feature

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Hi,

 

I am new to Micro controller programming.

 

I am working on a task in which we wanted to move our firmware into Security Zone.  I read about FlashVault feature in AVR in datasheet. It mentions that, Security Zone can be created and it is available in Revision 3 only.

But I am not able to find what is the revision of my microcontroller. Can someone help.

 

Part number I am using is  AT32UC3A3128s. I am not able to upload datasheet here..as it is 15 MB. Attaching other docs.

 

Thanks,

Amit

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Last Edited: Mon. Feb 5, 2018 - 12:18 PM
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FlashVaultTM is a part of Secure State which is indicated in the most significant bit of the status register.

 

AVR32UC Technical Reference Manual

http://ww1.microchip.com/downloads/en/DeviceDoc/doc32002.pdf (1MB)

(page 8)

2.4 The Status Register

UC3A3/4 datasheet

http://ww1.microchip.com/downloads/en/DeviceDoc/doc32072.pdf (15MB)

(page 26)

4.4.2 Status Register Configuration

UC3C datasheet

http://ww1.microchip.com/downloads/en/DeviceDoc/doc32117.pdf (19MB)

(page 30)

4.4.2 Status Register Configuration

 

"Dare to be naïve." - Buckminster Fuller

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Yeah. But it is available only in Revision 3 of Microcontroller. And my problem is I am not able to find what is the revision of my microcontroller AT32UC3A3128s. How do i do that ?

This reply has been marked as the solution. 
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UC3A3/4 datasheet

http://ww1.microchip.com/downloads/en/DeviceDoc/doc32072.pdf

(page 34)

4.6 Module Configuration

All AT32UC3A3 parts implement the CPU and Architecture Revision 2.

per

AVR32UC Technical Reference Manual

http://ww1.microchip.com/downloads/en/DeviceDoc/doc32002.pdf

(page 6)

The “Processor and Architecture”-chapter of the device datasheet identifies the CPU revision used.

 

Edit: Link target

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Mon. Feb 5, 2018 - 11:52 AM
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musale_amit@hotmail.com wrote:
I am new to Micro controller programming.

So why are you starting with AVR32?

 

See: http://www.avrfreaks.net/comment...

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right on cue.

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Thanks.! I missed it. Yes, this Microcontroller is Revision 2.