Hi @LuigiV ,
Thanks for your interest in NXP MIMXRT series!
The RT1011 provides FlexRAM functionality to configure the RAM into different sizes of ITCM, DTCM and OCRAM at a granularity of 32 Kb. However, it does not provide a SEMC interface, we can consider using FlexSPI to connect HyperRAM or PSRAM to expand the space.
You can refer to this application note: https://www.nxp.com/docs/en/nxp/application-notes/AN12239.pdf
Best regards,
Gavin