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LPC55S69: RAM reservation for ROM API operations

Question asked by Eugene Hiihtaja on Jan 22, 2020
Latest reply on Feb 6, 2020 by Sabina Bruce

Hi !


I try to understand what exact RAM areas can be reserved when some ROM API called and MCU is not in ISP mode.


For example when FLASH memory API  in use or Power Management ( backup area is documented .)


In UM chapter Secure ROM API :


The ROM reserved space for global variables in RAM on this
LPC55S6x/LPC55S2x/LPC552x product is:
0x30000000 to 0x30003FFF
0x14005000 to 0x140059FF


So this is valid for Secure ROM API in case if the used or it is valid for any ROM API usage ?


2. ROM in ISP mode 

UM RAM used by the ISP command handler

So this is for ISP mode only.



But I can't find SRAM areas what used by FLASH API.

Do you have information about it ?