A field of Loadable Code type is a special case of a protected item, i.e. it is protected with hardware locks from reading and writing. Its state can be programmed and later controlled from within the application.
Activation and deactivation services only are accessible to the loadable code, which control the state of the protected item and provide access to its contents from within the application. Operations with these services are identical to the operations with protected items and algorithms. See the section Hardware algorithm services for more information.