C8051F93X Datasheet, PDF (152/330 Pages) Silicon Laboratories – Pipelined intstruction architecture executes 70 of instruction in 1 or 2 system clocks

C8051F93x-C8051F92x
13.4. Determining the Device Part Number at Run Time
In many applications, user software may need to determine the MCU part number at run time in order to
determine the hardware capabilities. The part number can be determined by reading the value of the Flash
byte at address 0xFFFE.

The value of the Flash byte at address 0xFFFE can be decoded as follows:

0x56—C8051F930
0x5E—C8051F931
0xB1—C8051F920
0xB3—C8051F921
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Rev. 1.3