LAUNCHXL-CC1350: cc1350

i want to use the cache as the ram to update part of the nvs data(flash data).i mean i want to get the one flash sector data ,and combine the data with the new data in the sram,then i put the data of the sram into the nvs. in the case of not enough sram,i have to use the cache.but i find the note //Please make sure your program is not using VIMS while using cache as RAM in the  BLE-Stack User's Guide for Bluetooth 4.2 document.it seems i cannot achieve my plan.Does it right?thanks a lot!!!!