User's Manual

MOTOROLA Hardware 4-11
Preliminary
Chapter 4
Hardware
This section provides information on various aspects of the 72000 Development Kit hardware. In addition,
Appendix A, “Board Diagrams“, contains the development board schematic and component placement,
and Appendix B, “Bill of Material“, contains the BOM.
4.1 Signal and Connection Descriptions
The 72000 Development Kit contains the following connections, switches, and indicators:
• Power supply input
• Modular jack 4/4 connector for mono-audio speaker and microphone (headset application)
• RS232 interface
• UART interface
• Antenna connector
• JTAG allowing interface to MC72000 production test
• Reset button
• Three control buttons for future applications
• On/off switch
• Status LEDs
• Software download switch
The power supplied for the 72000 Development Kit is DC with the ratings stated in the specifications.
An analog audio signal to be transmitted over the Bluetooth connection can be fed into the 72000
Development Kit via the modular jack or as streaming audio through the host interface. It will be converted
to digital data and transmitted through the Bluetooth link. A digital audio signal received from a connected
Bluetooth device will be converted to an analog audio signal and available at the modular jack or as
streaming audio through the host interface (UART, SSI, SPI). The MC72000 has a Bluetooth Audio Signal
Processor (BTASP) for superior audio performance.
The RS232/UART interfaces can be used to transfer data and audio between a host and the Bluetooth device.
The firmware of the 72000 Development Kit can be upgraded through the RS232/UART interface.
The CODEC is attached to the MC72000 via SSI interface.
The antenna connector is an SMA 50 ohm connection.
The reset button can be activated to re-initialize the entire system.