The MC68HC912Dx128 microcontroller unit (MCU) is a 16-bit device
composed of standard on-chip peripherals including a 16-bit central
processing unit (CPU12), 128K bytes of flash EEPROM, 8K bytes of
RAM, 2K bytes of EEPROM

Default FLASH state - 0xFF


The Flash EEPROM module requires an external program/erase voltage
(VFP) to program or erase the Flash EEPROM array.

Для стирания и записи FLASH замкнуть перемычку VPRG
