Datasheet

Register 15: Link Register (LR)
The Link Register (LR) is register R14, and it stores the return information for subroutines, function
calls, and exceptions. The Link Register can be accessed from either privileged or unprivileged
mode.
EXC_RETURN is loaded into the LR on exception entry. See Table 2-10 on page 133 for the values
and description.
Link Register (LR)
Type RW, reset 0xFFFF.FFFF
16171819202122232425262728293031
LINK
RWRWRWRWRWRWRWRWRWRWRWRWRWRWRWRWType
1111111111111111Reset
0123456789101112131415
LINK
RWRWRWRWRWRWRWRWRWRWRWRWRWRWRWRWType
1111111111111111Reset
DescriptionResetTypeNameBit/Field
This field is the return address.0xFFFF.FFFFRWLINK31:0
99December 13, 2013
Texas Instruments-Advance Information
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TM4C129XNCZAD Microcontroller