Authenticated Data Scrambler and Descrambler for Advanced Bluetooth devices

Each network device or portable device with HOST interface (radio or cable) has several hierarchical structures which distribute functionality between different layers of that device. The hierarchy defined radio interface, base band layer. During development of the Bluetooth module, a new complex architecture is integrated; it supports low cost upgrades related to new generations of Bluetooth devices. This paper presents the Bluetooth technology and its architecture. The base band layer performs the functions related to interface interaction between the Bluetooth chipset and an external or integrated radio chip and a host system. In base band, different modules for data processing are integrated, like modules for generating scrambling base band module of blue tooth. The development of the module has been done with hardware description language VHDL. This permitted us to perform top level functional verification and debugging, as well as detailed subsystem simulations throughout the design process.