This variable attribute enables you to specify the absolute address of a variable.
The variable is placed in its own section, and the section containing the variable is given an appropriate type by the compiler:
Read-only variables are placed in a section of type RO.
Initialized read-write variables are placed in a section of type RW.
Variables explicitly initialized to zero are placed in:
A section of type ZI in RVCT 4.0 and later.
A section of type RW (not ZI) in RVCT 3.1 and earlier. Such variables are not candidates for the ZI-to-RW optimization of the compiler.
Uninitialized variables are placed in a section of type ZI.
GNU compilers do not support this variable attribute.