MC9S12KG128 Datasheet, PDF (98/600 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 2 128 Kbyte ECC Flash Module (FTS128K1ECCV1)
If the FCLKDIV register is written, the FDIVLD bit is set automatically. If the FDIVLD bit is 0, the
FCLKDIV register has not been written since the last reset. Flash commands will not be executed if the
FCLKDIV register has not been written to.
MC9S12KG128 Data Sheet, Rev. 1.15
98
Freescale Semiconductor