12.1.5.9 General-purpose NVM (GPNVM) Bits
All PIC32CZ CA70/MC70 devices feature general-purpose NVM (GPNVM) bits that can be cleared or set, through the “Clear GPNVM Bit” and “Set GPNVM Bit” commands of the EEFC User Interface.
| GPNVM Bit | Function |
|---|---|
| 0 | Security bit |
| 1 | Boot mode selection 0: ROM (default) 1: Flash Important: A reset is required after
state change. |
| 5:2 | Free |
| 6 | Reserved |
| 8:7 | TCM configuration 00: 0 Kbytes DTCM + 0 Kbytes ITCM (default) 01: 32 Kbytes DTCM + 32 Kbytes ITCM 10: 64 Kbytes DTCM + 64 Kbytes ITCM 11: 128 Kbytes DTCM + 128 Kbytes ITCM |