Datasheet

DescriptionResetTypeNameBit/Field
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
0ROreserved4:1
FPU Present
This bit indicates if the FPU is present in the Cortex-M4 core.
DescriptionValue
FPU is not present.0
FPU is present.1
0x1ROFPU0
299December 13, 2013
Texas Instruments-Advance Information
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TM4C129XNCZAD Microcontroller