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| BCM1600-BTE AUDIO (R) Brief FEATURES * BTE Insight development environment * * * * PC simulation environment Bluetooth protocol trace and debug Headset configuration graphical user interface Compile and download to target BCM2047 and BCM2044 hardware BTE-AUDIO SOFTWARE AND DEVELOPMENT ENVIRONMENT FEATURES * Bluetooth(R) software stack * Interoperable with the BTE-Mobile and BTW stack * Optimized for audio applications * Bluetooth 2.0 + EDR compliant--upgradable to future versions * BTE-Audio core stack * * * * * * * * * * * * * HCI (Host Controller Interface) L2CAP (Logical Link Control and Adaptation Protocol) RFCOMM (RS-232 Serial Cable Emulation Profile SDP (Service Discovery Protocol) Bluetooth manager GKI (Generic Kernel Interface) SBC (Subband codec) HSP (Headset Profile) HFP/HFP1.5 (Hands-Free Profile) AVDTP (A/V Distribution Transport Protocol) AVCTP (A/V Control Transport Protocol) GAVDP (Generic A/V Distribution Profile) Upgradable to other profiles SUMMARY OF BENEFITS * Based on field-tested and well-deployed BTE-Mobile stack * Highly interoperable with BTE-Mobile and BTW on sources * Easy-to-use development environment APPLICATIONS * Basic mono headset * Midrange mono headset * Quality mono headset * Stereo headphones * Stereo headset * Clip headset with LCD * BTE-Audio profiles BTE Insight Development Environment for Audio OVERVIEW Mono Headset Application Application Programming Interface Application Programming Interface Stereo Headset Application BTA Audio APIs BTA and Upper Core Stack BTA DM (GAP and SDAP) BTA AK (A2DP and AVRCP) BTA HS (HSP and HFP) Call-Ins/ Call-Outs Upper Layer Stack Audio Manager (AudioDE, Sound Driver) Host Controller Interface BTA Audio APIs BTA and Upper Core Stack BTA DM (GAP and SDAP) BTA HS (HSP and HFP) Utilities Utilities Call-Ins/ Call-Outs Upper Layer Stack Host Controller Interface Bluetooth(R) Firmware Core Bluetooth Core Lower Layer Stack Bluetooth(R) Firmware Core Bluetooth Core Lower Layer Stack Audio Manager (AudioDE, Sound Driver, SBC) Bluetooth Radio Bluetooth Hardware Layer Codecs Bluetooth Hardware Layer Bluetooth Radio Codecs Figure 1: BTA System Architecture for a Mono Headset Figure 2: BTA System Architecture for a Stereo Headset The Broadcom BTE-Audio stack simplifies the implementation of Bluetooth protocols and profiles by providing a high-level API (BTE-Audio API) to the audio application. The BTE-Audio API is optimized to ease audio application development, accelerate customer time-to-market, and provide customers with the flexibility to implement value-added differentiation for their solutions. The system architecture block diagrams (Figure 1 and Figure 2) show how BTE-Audio interfaces with typical mono and stereo headsets using the BCM2047 and BCM2044 platforms. The headset application interfaces with the BTA API to perform functions such as: * Enabling or disabling profiles * Connecting to a peer device * Performing call control, remote control commands, and so on The data flow interface to connect the audio data to the codec is implemented through a set of functions called call-ins and call-outs. Utility functions are provided for the application to control MMI operations involving LEDs, buttons, and beeps and also to access NVRAM. Acronyms AK BTA BTE BTW DE DM EDR GAP HS MMI SAP SDAP audio sink Bluetooth application Bluetooth for embedded modules Bluetooth for Windows data engine device manager extended data rate Generic Access Profile headset man-machine interface SIM Access Profile Service Discovery Application Profile Broadcom(R), the pulse logo, Connecting everything(R), and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2007 by BROADCOM CORPORATION. All rights reserved. 1600-BTE-PB00-R 01/16/07 Phone: 949-450-8700 Fax: 949-926-5203 E-mail: info@broadcom.com Web: www.broadcom.com |
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