Wrap address usage?

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SoC Design forum Wrap address usage?

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Offline LEO LEO over 6 years ago

Note: This was originally posted on 18th October 2008 at http://forums.arm.com

Hello guys..

I am working on AMBA AHB...
and came across the wrap address term...
Can you tell me that which kind of application need to do transfer using wrap address?

0 Offline LEO LEO over 6 years ago

Note: This was originally posted on 18th October 2008 at http://forums.arm.com

Thanks for the answer...
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0 Offline Peter Harris over 6 years ago

Note: This was originally posted on 18th October 2008 at http://forums.arm.com

Hi LEO,

The most common use of a wrap is a critical word first line load for the cache.

In these cases the core will issue a wrap burst with total length equal to the length of the cache line, but rather than starting at the first address in the cache line it will start at the "critical word" (the word that the user program asked for when the cache miss occured).

Cheers,

I
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