STM32U5G9 TrustZone MPCBB

[rdl_42]

I'm working with the STM32U5G9, trying to configure access to internal RAM blocks with TrustZone enabled.  Part of this configuration uses the HAL_GTZC_MPCBB_ConfigMem() function from stm32u5xx_hal_gtzc.c from STM32CubeU5 v1.7.0.

I see in that function a comment indicating:

  /* limitation: code not portable with memory > 512K */
  pMPCBB_desc->AttributeConfig.MPCBB_LockConfig_array[0] = READ_REG(mpcbb_ptr->CFGLOCKR1);

but the STM32U5G9 has several internal SRAM blocks with size over 512K:

Is TrustZone MPCBB control not fully supported by STMCubeU5 for the STM32U5Gx processors?  Am I missing something?

Thanks,

-Rob