Microchip Technology D70F3427GD(A) QFP(208) Device

IMPORTANT: 3-Wire Serial I/O Mode. Erase function for a Blank secured device is not supported. Security for this device cannot be verified. The Security Byte can be set under Device->Configure and programmed with Secure command. In order to program this Byte please enable Secure. Set Bit 0 to 0 will disable Chip Erase Set Bit 1 to 0 will disable Block Erase Set Bit 2 to 0 will disable Program. Set Bit 3 to 0 will disable Read. Set Bit 4 to 0 will disable Boot block rewrite. Bits 5 to 7 are reserved and should be set to 1s. Bit 1 2 and 3 can be erased through Chip Erase but once bit 0 is programmed to 0 the whole chip is secured and no further operations can be performed. Once Bit 4 is programmed to 0 the boot block clusters specified are secured and no further operations can be performed.