-Rk,name
The -Rk command line option sets the name of the default data section that the compiler emits read-only data into. If no other options are given, the default name for the section is CONST.
You can control the name of the read-only data section used by the compiler within a source file using the constseg pragma or by using CrossStudio to set the Constant Section Name property of the file or project.
To set the default constant section name for a project:
To set the default code section name for a particular file:
The following command line option instructs the compiler to use the name ROMDATA as the default read-only data section name and to initially generate all read-only data into that section.
-Rk,ROMDATA