11.3 Variables in Program Space

The DSC core families of processors contain hardware support for accessing data located in Program Flash.

dsPIC33A devices map Data memory and Program Flash seemlessly in unified memory map.

dsPIC33C/E/F and dsPIC30F devices use a hardware feature called Program Space Visibility (PSV). More detail about how PSV works can be found in device data sheets or Family Reference Manuals (see sections 11.3.3 Allocation and Access of Program Memory Objects and 15.7.2 PSV Usage with Interrupt Service Routines - dsPIC33C/E/F and dsPIC30 Devices Only [DD]).