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Why hexadecimal data pulled in mask file doesn't carry specified data?

Latest Updated:09/15/2006

Question:

I specified MM to write a certain data in a blank area of the mask file. But the hexadecimal data file extracted from the mask file doesn't seem to include the specified data. Why is that?

Answer:

MM does not write the specified data to a blank area in the MCU internal ROM area. MM will just hold the specified data in the mask file for filling in the blank area of the MCU internal ROM. The actual filling operation is performed at the ROM Mask processing stage.
Therefore, when extracting a hexadecimal data file from a mask file generated by MM, the specified data will not appear in that hexadecimal data file. The extracted file will be the same as what was input at the time of the mask file generation.
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