FME-FR Programmer
FR Family MB91460 Series, Flash Programming, Doc. No. 002-05153 Rev. *A
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Figure 3-3. Reset Signal Settings
The software now automatically writes a flash loader to the microcontroller, does a blank check and erases the
flash memory if necessary. After that the user application is programmed to the embedded flash memory.
During this sequence the actual progress status can be seen by checked off steps on the “Automatic” sheet and
the messages below in the message box.
If the programming sequence is ended successfully, you will receive the output shown in figure 7.
MB91F464A/H, MB91F465B/C/D/K/P/X, MB91F467B/C/D/M/P/S/T:
Addresses 0x14:8000 to 0x14:800F cannot be written in automatic mode.
MB91F469G:
Addresses 0x24:8000 to 0x24:800F cannot be written in automatic mode.
This is a built in security feature to prevent unintended writing to the Flash Security Vectors and Boot Security
Vectors. Otherwise it would be possible to secure flash content and to lock the microcontroller for serial
programming/reading/erasing by not being able to enter the internal loader anymore. If you want to use these
features explicitly, you have to program these dedicated addresses by using the “Prog Word” Function of the
step-by-step mode.
