Socket Mobile BTM-4 KwikBlue4 Class 1 BC04 Bluetooth Module User Manual Revised Manual

Socket Mobile, Inc. KwikBlue4 Class 1 BC04 Bluetooth Module Revised Manual

Revised Manual

KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 1 Document#: CONFIDENTIAL Revision 0.1 KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual 8 Mbit Memory, UART - USB Interface Bluetooth 2.0 + EDR Socket P/N 8520-00096 Revision 0.1 June 21, 2005
Regulatory Approvals FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communica-tions. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. To assure continued compliance, any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. (Example - use only shielded interface cables when connecting to computer or peripheral devices). FCC Radiation Exposure Statement This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The antennas used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. CAUTION:1) To comply with FCC RF exposure compliance requirements, a separationdistance of at least 20 cm must be maintained between the antenna of thisdevice and all persons.2) This transmitter must not be co-located or operating in conjunction withany other antenna or transmitter.
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manu al June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 2 Document#: CO NFIDENTIAL Revision 0.1 Reproduction of the contents of this manual without the permission of Socket Communications or AboCom System is expressly prohibited. Please be aware that the product described in this manual may change without notice. This manual has been prepared with the greatest care regarding its contents. However, in the event that it contains omissions, errors or any other misinformation, please feel free to direct comments to: http://www.abocom.com.tw/or www.socketcom.com. for the details. Other than the above, Socket Communications or AboCom System can assume no responsibility for anything resulting from the application of information contained in this manual. The OEM integrators of this module must keep the device and antenna 20cm away from all persons,and the end user has no instructions to install this device. If these conditions cannot be met then OEM integrators must seek their own approvals, including their own FCC ID. Caution
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 3 Document#: CONFIDENTIAL Revision 0.1 Copyright and Trademarks The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Socket Communications is under license. Socket Communications and  are registered trademarks of Socket Communications, Inc.
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 4 Document#: CONFIDENTIAL Revision 0.1 Table of Contents 1. General.....................................................................................................................................................5 1.1 Purpose and Scope of Document ..................................................................................................... 5 1.2 Product Overview ............................................................................................................................ 5 2. Standard Operating Conditions ............................................................................................................5 3. Features List............................................................................................................................................5 3.1 Common Physical Layer Specifications............................................................................................. 6 3.2 Hardware Pin-assign........................................................................................................................... 7 3.3 RESET Sequence.............................................................................................................................. 10 3.4 UART (Universal Asynchronous Receiver Transmitter) ................................................................. 10 3.5 USB .................................................................................................................................................. 11 3.5.1 Summary of Supported Features ................................................................................................... 11 3.5.2 Description of Each Hardware Interface ....................................................................................... 11 3.5.3 RESET Control.............................................................................................................................. 11 3.5.4 Limitations..................................................................................................................................... 12 3.6 PCM.................................................................................................................................................. 13 3.6.1 Features.......................................................................................................................................... 13 3.6.2 Recommended Codec IC............................................................................................................... 13 4. Software Specifications.........................................................................................................................14 4.1 Software Architecture....................................................................................................................... 14 5. Application Note....................................................................................................................................15 5.1 Layout guideline............................................................................................................................... 15 5.2 Power source .................................................................................................................................... 15
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 5 Document#: CONFIDENTIAL Revision 0.1 1. General 1.1 Purpose and Scope of Document This document describes a radio device incorporating Bluetooth® wireless technology known as a Bluetooth Class 1 BC04 module. The Bluetooth module complies with the “Specification of the Bluetooth System,” version 2.0 + EDR. This document describes the General design guideline for the Bluetooth module. 1.2 Product Overview The Bluetooth module contains CSR’s BC04-EXT chipset which has a complete transceiver radio and baseband controller section: 16 bit RISC processor, RAM and Flash memory. Also built in are a high- accuracy reference oscillator and a subclock for managing power to extremely low levels. Protocol software is preloaded into the integrated Flash memory and interfaces to the HCI layer of the upper layer protocol stack on an appropriate host system. 2. Standard Operating Conditions Items Conditions Operating Temperature -20° C to +85° C Storage Temperature -40° C to +85° C Supply Voltage; VCC 3.1 V to 3.6 V Absolute Maximum Ratings Supply Voltage VCC : -0.4 V ~ +3.6 V 3. Features List Features Values Power Level +16 dBm Max. Program Memory 8 Mbits (512k x 16 bits) Flash RAM 32k bytes x 16 bits Reference Oscillator Built-in Sub Clock Oscillator Built-in Audio Interface PCM A-Law, µ-Law (CVSD) Serial Data Interface UART (BCSP of H:4) USB Interface USB 1.1 (OHCI and UHCI) Physical Connection Board-to-board connection – solder down
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 6 Document#: CONFIDENTIAL Revision 0.1 3.1 Common Physical Layer Specifications Operating Frequency 2400 MHz to 2483.5 MHz Carrier Spacing 1.0 MHz Channel 79 Duplexing TDD Symbol Rate (Std data rate) 1 Mbps Symbol Rate (EDR data rate) 2 & 3 Mbps Modulation Method (Std data rate) GFSK BbT = 0.5 Modulation Method (EDR data rate) DQPSK & D8PSK Reference Oscillator 16 MHz (built in) RF input and output impedance Nominal 50 ohm
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 7 Document#: CONFIDENTIAL Revision 0.1 3.2 Hardware Pin-assign Please reference the following pin-assignment for your application development. Name No. I/O Description Pad Type Active State Usage Typical External Connection, UART / PCM GND 1 --- Ground VSS GND GROUND VCC_PA 2 I Power for RF Power Amplifier power = 3.3V VCC POWER DC Power SourceGND_PA 3 --- Module PA ground VSS GND GROUND AIO_0 4 I/O Programmable input/output line Bi-directional User Defined Programmable IOAIO_1 5 I/O Programmable input/output line Bi-directional User Defined Programmable IOPIO_2/ USB_PULL_UP 6 I/O PIO or USB pull-up (via 1.5kΩ resistor to USB_D+) Bi-directional with programmable weak internal pull-up/down --- User defined Programmable IOPIO_3/ USB_WAKE_UP 7 I/O PIO or output goes high to wake up PC when in USB mode or external RAM chip select Bi-directional with programmable weak internal pull-up/down --- User defined Programmable IOGND 8 --- Ground VSS GND GROUND GND 9 --- Ground VSS GND GROUND UART_RXD 10 I UART data input active high CMOS input with weak internal pull-down Hi:0 Lo:1 UART TxD
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 8 Document#: CONFIDENTIAL Revision 0.1 Name No. I/O Description Pad Type Active State Usage Typical External Connection, UART / PCM UART_TXD 11 O UART data output active high CMOS output Hi:0 Lo:1 UART RxD UART_CTS 12 I UART clear to send active low CMOS input with weak internal pull-down Hi: De-assert Lo: Assert UART RTS UART_RTS 13 O UART request to send active low CMOS output, tristatable with internal pull-upHi: De-assert Lo: Assert UART CTS USB_DP 14 I/O USB data plus Bi-directional USB USB_DN 15 I/O USB data minus Bi-directional USB PIO_10 16 I/O Programmable input/output line Bi-directional with programmable weak internal pull-up/down --- User defined Programmable IOVCC 17 I Module main power 3.3V VCC VCC DC power sourcePIO_11 18 I/O Programmable input/output line Bi-directional with programmable weak internal pull-up/down --- User defined Programmable IOGND 19 --- Ground VSS GND GROUND GND 20 --- Ground VSS GND GROUND SPI_CSB 21 I Chip select for Synchronous Serial Interface active low CMOS input with weak internal pull-upHi: Power Inactive Lo: Power Active SPI Socket Only SPI_MISO 22 O Serial Peripheral Interface data output CMOS output, tristatable with weak internal pull- down Hi: 1 Lo: 0 SPI Socket Only SPI_CLK 23 I Serial Peripheral Interface clock CMOS input with weak internal pull-down Hi: Active Lo: Inactive SPI Socket Only SPI_MOSI 24 I Serial Peripheral Interface data input CMOS input with weak internal pull-down Hi: 1 Lo: 0 SPI Socket Only RESET# 25 I Reset if low CMOS input with weak internal Hi: Active (Reset) Lo: Inactive RESET# Host CPU port PCM_OUT 26 O Synchronous data output CMOS output, tristatable with internal weak pull-down Hi:1 Lo: 0 PCM PCM input
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 9 Document#: CONFIDENTIAL Revision 0.1 Name No. I/O Description Pad Type Active State Usage Typical External Connection, UART / PCM PCM_SYNC 27 I/O Synchronous data SYNC Bi-directional with weak internal pull-down Hi: Active Lo: Inactive PCM Frame Sync I/OPCM_IN 28 I Synchronous data input CMOS input, with internal weak pull-down Hi:1 Lo: 0 PCM PCM output PCM_CLK 29 I/O Synchronous data clock Bi-directional with weak internal pull-down Hi: 1 Lo: 0 PCM PCM Clock I/OGND 30 --- Ground VSS GND GROUND GND 31 --- Ground VSS GND GROUND PIO_7/ RAM_CSB 32 I/O Programmable input/output line Bi-directional with programmable weak internal pull-up/down --- User defined Programmable IOPIO_6/ CLK_REQ 33 I/O PIO line or clock request output to enable external clock for external clock line Bi-directional with programmable weak internal pull-up/down --- User defined Programmable IOPIO_5/ USB_DETACH 34 I/O PIO line or chip detaches from USB when this input is high Bi-directional with programmable weak internal pull-up/down --- User defined Programmable IOPIO_4/ USB_ON 35 I/O PIO or USB on (input senses when VBUS is high, wakes BlueCore2-External) Bi-directional with programmable weak internal pull-up/down --- User defined Programmable IOPIO_9 36 I/O Programmable input/output line Bi-directional with weak internal pull-up/down --- User defined Programmable IOPIO_8 37 I/O Programmable input/output line Bi-directional with weak internal pull-up/down --- User defined Programmable IOGND 38 --- Ground VSS GND GROUND GND 39 --- Ground VSS GND GROUND EXT_ANT 40 --- Optional antenna output Bi-directional with DC block RF output Optional antenna output
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 10 Document#: CONFIDENTIAL Revision 0.1 3.3 RESET Sequence RESET is asserted by module itself, the external reset circuit is not required. 3.4 UART (Universal Asynchronous Receiver Transmitter) UART_TxD, UART_RxD, UART_RTS, UART_CTS form a conventional asynchronous data serial port. The interface is designed to operate correctly when connected to other UART devices such as the NS16550A. The signaling levels are 0V and VCC. The interface is programmable over a variety of bit rates; none, even or odd parity; one or two stop bits and hardware flow control on or off. The default condition on power-up is pre-assigned in the Flash memory. The maximum UART data rate is 1.3824 Mbps. Two-way hardware flow control is implemented by UART_RTS and UART_CTS. UART_RTS is an output and is active low. UART_CTS is an input and is active low. These signals operate according to normal industry convention.
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 11 Document#: CONFIDENTIAL Revision 0.1 3.5 USB USB interface is compliant with Universal Serial Bus Specification 1.1 and supports 12 Mbps “Full Speed” and single ended data interface. And also, USB interface according to Bluetooth™ Specification 1.1 “USB transport layer” as well, including interface suggested by Intel for further power management. 3.5.1 Summary of Supported Features Items Description Application The integrated BluetoothTM chip works as a “device” and answer on “requests” from a “master host controller” as for example a PC. Speed “High speed mode” only USB Windows Class Wireless Controller (bDeviceClass=0xE0h) USB Sub class RF Controller (bDeviceSubClass=0x01h) USB Protocol code Bluetooth™ Programming (bDeviceProtocol=0x01) OHCI/UHCI Supported SCO support SCO supported as Isochronous transfer mode (needed to be changed USB subclass to enable SCO over USB) Transfer mode Bulk, Control and Isochronous supported USB data packets length All packet size supported according to Bluetooth™ Spec 2.0+EDR Number of endpoints 6 end points USB manufacture code Unless specified, persistent storage saving “Socket” as manufacturer HCI extended commands All private commands will be capsulated to payload and de-capsulated in Module Stack 3.5.2 Description of Each Hardware Interface Module Pin Name I/O Requirement Description USB_D+ D+ bi-dir Mandatory Defined in USB spec 1.1 USB_D- D- bi-dir Mandatory Defined in USB spec 1.1 3.5.3 RESET Control Reset mode Requirement Description Power On Reset Mandatory Hardware reset. Power on reset circuit is built in Module RESET port is not required to connecting Host for production. To do HARD RESET, input high level (VIH) of minimum 200 µs to reset terminal. HCI reset commands Mandatory Software reset. Supported by Socket Bluetooth™ Driver Drive D+ D- low Mandatory USB defined reset
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 12 Document#: CONFIDENTIAL Revision 0.1 simultaneously 3.5.4 Limitations 1) Power Specific Limitations: today, the host controller of USB capable machines resides inside a chip known as PIIX4. Because of the design, the USB host controller will not receive power while the system is in S3 or S4. This means that a USB wakeup can only occur when the system is in S1 or S2. Another issue with the USB host controller is that, while a device is attached, it continually snoops memory to see if there is any work that needs to be done. The frequency that it checks memory is 1ms. This prevents the processor from dropping into a low power state known as C3. Because the notebook processor is not able to enter the C3 state, SIGNIFICANT power loss will occur. This is a real issue for business users – as a typical business user will spend almost 90% of their time in the C3 state. 2) Other Limitations: data corruption may occur across isochronous endpoints. Endpoints one and two may suffer from data corruption. USB provides 16-CRC on all data transfers. The USB has a bit error rate of 10 –13 .
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 13 Document#: CONFIDENTIAL Revision 0.1 3.6 PCM 3.6.1 Features The Bluetooth module implements an audio transcoder to translate between A-law, µ-law and linear voice data from the host and A-l a w, µ-law and CVSD voice data over the air. Voice interpolation for lost packets is also included. PCM_OUT, PCM_IN, PCM_CLK and PCM_SYNC carry up to three bi-directional channels of voice data, each at 8 ks/s. The PCM samples can be 8-bit A-law, 8-bit µ-law, 13-bit linear or 16-bit linear format. The PCM_CLK and PCM_SYNC pins can be configured as inputs or outputs, depending on whether the Bluetooth module is the master or slave of the PCM interface. The PCM_SYNC operates at a fixed clock frequency of 8 KHz. When PCM_SYNC is operated as an output (master mode) a clock frequency of 8 KHz is generated from this pin. When operated as an input (slave mode) 8 KHz must be applied to this pin. PCM_CLK operates at a fixed clock frequency of 256 KHz. When PCM_CLK is operated as an output (master mode) a clock frequency of 256 KHz is generated from this pin. When operated as an input (slave mode) 256 KHz must be input on this pin. When used with the Motorola MC145483 PCM or compatible devices, bits 1 to 13 of the PCM_OUT data carry the current output sample value. Bits 14 to 16 carry a three-bit signal level value and these “level bits” vary the level of the audio signal output from the PCM device. 3.6.2 Recommended Codec IC The Bluetooth module can be interfaced directly to the following PCM audio chips:  OKI MSM7705 four channel µ/A-law codec  Motorola MC145481 8-bit µ/A-law codec  Motorola MC145483SD 13-bit linear codec  Mitel MT93LI6 Echo canceling codec Figure 1: PCM Bus Transfer Definition DtmsbDtmsb1765432 98 10clksynPCM_CLK1211 13 14D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13mc lkpw hpw lriselfallsynclkDt13DtclkPCM_SY NCPCM_OUTHdsynDval1765432 98 10clksynPCM_CLK1211 13 14D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13mc lkpw hpw lsynclkPCM_SY NCPCM_INDinvlHdsyn
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 14 Document#: CONFIDENTIAL Revision 0.1 4. Software Specifications The Bluetooth module contains the Bluetooth protocol stack (firmware) HCI (Host Controller Interface) compliant with the “Specification of the Bluetooth System,” version 2.0+EDR. 4.1 Software Architecture The following figure shows typical implementation example of Bluetooth protocol stack using the Bluetooth module. As shown in this figure, a Bluetooth protocol stack over HCI is required to complete the full Bluetooth functionality. Figure 2: Software Architecture Bluetooth Radio Radio Interface Driver Base BandLink Controller Link Manager HCI Firmware HCI MUX UART(BCSP/H4)/USB physical driverUART (BCSP/H4)/USB physical driver Serial Stream MUX (BCSP)HCI L2CAP SDP RFCOMM Software Application Interface SOCKET BLUETOOTH MODULE Serial Stream MUX (BCSP)Voice
KwikBlue4-1 Bluetooth® Class 1 BC04 Module Manual June 21, 2005 Copyright © 2004-2005 Socket Communications, Inc. Page 15 Document#: CONFIDENTIAL Revision 0.1 5. Application Note 5.1 Layout guideline 5.1.1 please follow the footprint of module. 5.1.2 Don’t put coppor foil or any trace under the antenna area. 5.1.3 Add a power de-coupling circuit for 3.3V and PA3.3V. 5.1.4 Suggest to take coppor foil or any trace away from the near side with our module. 5.1.5 Keep the USB trace shortly as possible. 5.2 Power source 5.2.1 Suggest to use a LDO regulator to convert your power into 3.3V for our module.

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