SLAA380B December 2007 – September 2018 MSP430F2616 , MSP430F2617 , MSP430F2618 , MSP430F2619
MSP430F261x devices have a new bootloader (BSL) firmware with enhanced security features. Both MSP430F16x and MSP430F261x device memory access is protected by a 256-bit password. However only MSP430F261x devices erase the entire device flash memory contents (including the factory-provided calibration constants stored in the INFOA flash segment) on the first attempt to access the device with an incorrect password. This behavior is configurable and needs to be considered for applications that use the BSL interface to provide in-field software upgrade capability.