How application know the model of microcontroller? Is maskset or unique numbers readable?

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How application know the model of microcontroller? Is maskset or unique numbers readable?

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Xan
Contributor I
Hi'all, can someone tell me how to get the model of microcontroller from the application? For example, MC9S12DG256CFU maskset is 0L91N, is it in the controller's memory? What is the address of it? Or if it is not in the memory, is there any unique code in the memory i can read so that i know which controller it is.
 
 
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Nabla69
Contributor V
Hi Xan,
 
You can look at PARTID register in the datasheet.
It gives the model of the die inside the package.
 
Alvin.
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Xan
Contributor I
Thanx, The location is 0x001A-1B
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