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BISM2 Bluetooth™ Version 2.0 Serial Module
1. General Description
Ezurio’s BISM2 Bluetooth Serial Module is a fully integrated and qualified Class 1 Bluetooth solution
designed for lowest cost of integration and ownership for designers wishing to incorporate Bluetooth
functionality into their products. The module is qualified to Bluetooth Version 2.0.
The BISM2 Bluetooth Serial Module is one of the most compact complete Bluetooth solutions, making
it ideal to integrate into handheld devices. However a version of the BISM2 module is available that
retains the same board size, mounting holes and connector as the previous Bluetooth Module from
Ezurio, allowing users to access the improved radio performance and functionality without the need
for any pcb modifications.
The BISM2 Module is based on Cambridge Silicon Radio’s BlueCore 04 chipset. The module contain
sall of the hardware and firmware for a complete Bluetooth solution, requiring no further components.
The Module has an integrated, high performance antenna which is matched with the Bluetooth RF and
baseband circuitry. The firmware integrated into the BC04 chipset implements the higher layer
Bluetooth protocol stack, up to and including the Generic Access Profile (GAP), Service Discovery
Profile (SDAP), Serial Port Profile (SPP), Dial Up Networking Profile (DUN), Headset Profile (HSP),
Hands Free Profile (HFP), File Transfer Profile (FTP) and Audio Gateway. A virtual processor is used
within the BC04 to implement an AT command processor. This interfaces to the host system over a
straight forward serial port using an extensive range of AT commands. The AT command set abstracts
the Bluetooth protocol from the host application, saving many months of programming and
integration time. It provides extremely short integration times for data oriented cable replacement
and voice applications. A low cost development system is available for fast product evaluation and
development.
An alternative version of firmware is available that provides programming support for multi-point
applications.
The Module can be configured so that it can be attached to a ‘dumb’ terminal or attached to a PC or
PDA for cable replacement applications.
In addition to the Bluetooth functionality, The BISM2 Module provides access to 9 General I/O lines
and 2 analogue input and output lines. These can be configured to provide connection to simple
devices such as switches or LEDs without requiring any external processing. Both the GPIO and ADC
lines can be accessed either via the wired host UART connection, or remotely over the Bluetooth link.
The BISM2 module is supplied in a small form factor pcb (22.0mm x 34.0mm x 7.6mm), that
connects to a main pcb using a 40 way Hirose connector. The interface is compatible with the BISM1
module. The module includes a high sensitivity, high gain antenna which provides excellent range.
Typical open field performance provides ranges of over 250 metres at transmit powers of 4mW.
Support is provided for low power modes that make the BISM2 particularly applicable to battery
powered installations.
The BISM2 module is Lead-free and is RoHS compliant and supports an industrial temperature range
of -40°C to +85°C.
1.1 Applications
• POS Equipment
• Medical Equipment
• Telematics
• Voice Applications
• Industrial Automation
• Automotive Applications
Bluetooth is a trademark owned by Bluetooth SIG, Inc., USA, and is licensed to Ezurio Ltd
Module shown without RF shield