PENABLE and PPROT are in APB

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sun_ray

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Can anybody please describe more on what PENABLE and PPROT are in APB?
 

PENABLE indicates when the transaction takes place (the access phase).

PPROT gives protection information for the transaction (i.e. privileged, secure, data or instruction). Often this is ignored.

Download the spec for free of the ARM web site.
 

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