Rainbow Electronics AT76C551 - Manual (Page 2)

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AT76C551
1612D–08/01
Overview
The AT76C551 is a single chip controller providing the functionality for high data rate, short
distance wireless communications in the free ISM band. In conjunction with a 2.4 GHz trans-
ceiver, it provides a cost effective networking solution for a wide range of digital
communication devices and computer peripherals. Integration is simplified due to the incorpo-
ration of three different interfaces: USB and 16550 UART compatible interfaces and a
PCMCIA interface conforming to the PC Card 95 specification. Additionally, a voice cod-
ing/decoding module is provided.
The AT76C551 is comprised of a baseband processor. This processor carries out all bit-level
processing after modulation/demodulation of the Bluetooth bitstream. It controls the trans-
ceiver and dedicated voice coding/decoding. The AT76C551 has an ARM7TDMI processor
core with support for internal and external memory, as well as the interface core logic.
The powerful RISC processor in the ARM7TDMI carries out all but the low level baseband
functions.
Applications
AT76C551 can be used in applications where fast short range communication is required
between portable devices such as mobile phones and digital peripherals.
Typical usages would include:
• Wireless network cards
• Mobile phones
• Laptop and desktop computers
• Pagers
• Digital cameras
• PDAs
• Wireless computer peripherals (printers, etc.)