5.2 Device Protection

The MC25VF128 offers a software-based write protection scheme that supports group protection of selected blocks within the memory array. The Write-Protect pin (WP#), along with the SRP0 bit in Status Register 1 and the SRP1 bit in Status Register 2, is used to enable or disable protection and lock‑down of the STATUS register. When enabled, this mechanism prevents any changes to the block protection settings (BP0, BP1, BP2, TB, SEC and CMP) during device operation.