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Chipset 802.11b e Bluetooth |
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Mobilian Corp. ha dimostrato al Comdex come sia possibile avere un chipset per i due standard 802.11b e  Bluetooth rispettivamente a lungo ed a corto raggio.
Attraverso questo Chip è possibile fare una conversione diretta tra i due standard, il chipset chiamato MN12100 include anche la possibilità di usufruire del WEP a 40 o a 128 bit, ed infine al suo interno è disponibile un microprocessore che ridurrebbe del 20 percento il peso alla CPU generale per gestire il segnale.
Scheda tecnica:
http://12.108.1.181/images/true_radio_product_brief.pdf
Antenna Applications Note:
http://www.mobilian.com/images/Antenna_Application_Note.pdf
TrueRadio Digital Chip (MN12100)
The TrueRadio digital chip integrates the Wi-Fi and Bluetooth basebands and MACs, and links them together through a MAC-level interference management control block, a core component of the Sim-Op™ engine. The digital chip contains an ARM7TDMI embedded processor core, and performs all of the control and system management tasks, modulation/demodulation for both Wi-Fi and Bluetooth, and provides the host and memory interfaces. The digital chip also contains internal RAM and ROM blocks, which are used for fast data and code access, in addition to the external memory interface allowing for connection up to 4MB of SRAM/Flash. The host interface features auto-detect mechanisms to allow implementation of true “plug-and-play” functionality for different product form factors such as PCI, miniPCI, and Cardbus. Various A/D and D/A blocks are also implemented in the digital chip to interface with the TrueRadio analog chip, and to provide the conversion from baseband radio signals in the digital chip to modulated signals in the analog chip.
D'Amato Luigi www.securitywireless.info |
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