Mobile Phone Application Notes

BlueCore Power Saving Modes describes BlueCore's power saving features (deep sleep and shallow sleep) for HCIStack1.1v12.x, HCIStack1.1v13.x, HCIStack1.1v14.x, HCIStack1.1v15.x and HCIStack1.1v16.x firmware builds.

Last updated: 08 Jan 2003, 12:00

BlueCore Tx Offset and Rx Image Frequency discusses the dependence of Tx offset and Rx image frequency on reference clock input frequency in CSR’s BlueCore-ROM devices.

Last updated: 09 Mar 2005, 12:00

The BlueCore Command (BCCMD) is a protocol that interfaces to a command interpreter on a CSR Bluetooth chip. The command interpreter presents commands that allow monitoring and control of the chip.

Last updated: 26 Jul 2004, 13:00

This document describes the lower layers of a protocol stack called the BlueCore Serial Protocol (BCSP), which is used to carry a set of data flows through a highly reliable UART (Universal Asynchronous Receiver Transmitter) link.

The stack has been designed to transfer data between a Bluetooth Host and a Bluetooth Host Controller. The stack is intended to be used to carry the Bluetooth HCI protocols plus several others.

Last updated: 15 Jul 2004, 13:00

This document describes the techniques and Persistent Store (PS) Key settings required for the BlueCore range of Bluetooth® wireless technology chips to provide a wakeup signal for the peer/host device on the H4 and BCSP transport layers.

Last updated: 24 Apr 2006, 16:55

Wireless communication systems operate within certain prescribed frequency bands. Bluetooth® and IEEE 802®.11b/g share the same 2.4GHz band, which extends from 2.4 to 2.4835GHz. When operating within range of each other, the systems can experience mutual interference that reduces performance. This document describes the nature of the interference, the effects on performance and the various co existence solutions that can be implemented on CSR’s BlueCore™ silicon to reduce interference and improve performance.

Last updated: 21 Mar 2006, 14:09

In applications where a host is present with the BlueCoreTM device various means can be used to reduce the overall power consumption of the system. One method for BlueCore3-ROM and later devices in systems where the host wakes regularly is to use a feature known as Casual Scan, where the presence of a system clock can wake BlueCore from deep sleep in order to perform non time-critical tasks such as page and inquiry scanning in synchronisation with the host.

Last updated: 16 Sep 2005, 14:23

From HCIStack1.1v17.x the firmware can be in ROM and the BlueCore chip may have no writable/persistent storage in which to hold its configuration data. The baseband needs configuration data to run, and the host must provide it when the chip is initialised. This document describes this mechanism.

Last updated: 02 Aug 2005, 16:08

Lithium Ion Polymer Battery Safety Information Note note addresses safety issues that are relevant to both Lithium Ion and Lithium Polymer cells (batteries).

Last updated: 29 Nov 2004, 12:00

This document provides guidance on the selection of suitable I2C EEPROMs to use with BlueCore.

Last updated: 30 Mar 2004, 13:00

This document explores requirements for including Bluetooth wireless technology devices within a mobile cellular phone handset and how BlueCore2-ROM meets these requirements.

Last updated: 23 Mar 2004, 12:00