HBM1X1M

Bluetooth V1.2 Class 1 Module

Data Book

3.2 USB

This Bluetooth module contains a full speed (12Mbit/s) USB interface that is

capable of driving a USB cable directly. No external USB transceiver is required.

The device operates as a USB peripheral, responding to requests from a master

host controller such as a PC. Both the OHCI and the UHCI standards art

supported. The set of USB endpoints implemented can behave as specified in

the USB section of the Bluetooth specification v1.2 or alternatively can appear as

a set of endpoints appropriate to USB audio devices such as a set of USB

speakers.

Since USB is a master/slave oriented system (in common with other USB

peripherals), This Module only supports USB slave operation.

3.3 SPI (Serial Peripheral Interface)

BlueCore3-Multimedia External uses 16-bit data and 16-bit address serial

peripheral interface, where transactions may occur when the internal processor

is running or is stopped.

The BlueCore3-Multimedia External is the slave and receives commands on

SPI_MOSI and outputs data on SPI_MISO.

1

Reset the SPI interface

Hold SPI_CSB high for two SPI_CLK cycles

2

Write the command word

Take SPI_CSB low and clock in the 8 bit command

3

Write the address

Clock in the 16-bit address word

4

Write or read data words

Clock in or out 16-bit data word(s)

5

Termination

Take SPI_CSB high

3.4 Kalimba DSP

The Kalimba DSP is an open platform Kalimba DSP allowing signal processing

functions to be performed on over-air data or CODEC data in order to enhance

audio applications.

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