Write Protection issue on EPCS

[Altera_Forum]

Hi, I'm using CyclonIII with standard AS configuration scheme with EPCS64. 

 My project includes writing/reading parameters to/from EPCS Flash memory by NIOS.   How can I protect Configuration Image on EPCS Flash from accidental overwriting?   Thanks.

[Altera_Forum]

EPCS flash devices have a block protection feature which helps to prevent unintentional data overwriting. You can select the protected blocks through a 3-bit configuration in status register.  

Refer to the EPCS datasheet, page 16 and following.

[Altera_Forum]

Thank you for your response.  

Yes, I know about this register but I don't realy want to alter EPCS Controller design in order to access this register. Is there another way to config this reg?

[Altera_Forum]

I think, the protection can be changed in the flash programmer tool, it has been discussed in the forum before.

[Altera_Forum]

Could you possibly point me at this topic in the forum? I've not found it.