AN4429 Datasheet, PDF (1/14 Pages) STMicroelectronics – The RPC56xx and SPC56xx families of devices have internal Flash

AN4429
Application note
RPC56xx and SPC56xx C90FL Flash recovery in case of brownout
during Flash erase operation
Introduction
The RPC56xx and SPC56xx families of devices have internal Flash used for code and data.
The following RPC56xx and SPC56xx devices use C90FL technology they are for internal
Flash:
• RPC56ELxx
• RPC564Axx
• SPC56xLxx
• SPC564Axx
If, on C90FL Flash, there is an accidental power loss or supply voltage drop or unexpected
reset (in general called brownout) that happens during a Flash erase operation, the Flash
blocks erased are left a not deterministic state.
This application note describes how to recover the C90FL Flash block(s) interrupted during
an erase operation in case of such brownouts.
January 2015
DocID025710 Rev 2
1/14
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