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DATASHEET l AB1126A tiaBluetooth 3.0 Single Chip for Human Input Device Application Preliminary Specification ConFfiodrenCompxVERSION 0.1 2-Feb-2015 This document is commercially confidential and must NOT be disclosed to third parties without prior consent. The information provided herein is believed to be reliable. But production testing may not include testing of all parameters. AIROHA Technology Corp. reserves the right to change information at any time without notification. ( HTTP://WWW.AIROHA.COM.TW TEL:+886-3-6128800 FAX:+886-3-6128833 sales@airoha.com.tw ) ntial This document is commercially confidential and must NOT be disclosed to third eparties without prior consent. fid x The information provided herein is believed to be reliable. But production testing p may not include testing of all parameters. AIROHA Technology Corp. reserves ConFor Com the right to change information at any time without notification. This document is commercially confidential and must NOT be disclosed to third parties without prior consent. The information provided herein is believed to be reliable. But production testing may not include testing of all parameters. AIROHA Technology Corp. reserves the right to change information at any time without notification. ( HTTP://WWW.AIROHA.COM.TW TEL:+886-3-6128800 FAX:+886-3-6128833 sales@airoha.com.tw ) AB1126A Bluetooth 3.0 Single Chip TABLE OF CONTENTS TABLE OF CONTENTS .................................................................................................................................... 3 List of Figures .................................................................................................................................................. 5 List of Tables .................................................................................................................................................... 6 Revision History .............................................................................................................................................. 7 1 System Overview .................................................................................................................................... 8 1.1 General Description ..................................................................................................................... 8 l 1.2 Features ....................................................................................................................................... 8 tia 1.3 Block Diagram.............................................................................................................................. 8 2 Product Description.............................................................................................................................. 10 2.1 Pin Definition .............................................................................................................................. 10 2.2 Pin Description ............................................................................................................................11 n 3 Electrical Characteristics ..................................................................................................................... 13 e 3.1 Absolute Maximum Ratings ....................................................................................................... 13 fid x 3.2 Recommended Operating Conditions........................................................................................ 13 p 3.3 Digital Terminals ......................................................................................................................... 13 3.4 Reference Clock ........................................................................................................................ 14 3.5 Switching Regulator ................................................................................................................... 14 n m 3.6 Typical Current Consumption..................................................................................................... 15 o o 3.9 Radio Characteristics ................................................................................................................. 15 3.9.1 Transmitter ........................................................................................................................ 15 C C 3.9.2 Receiver ............................................................................................................................ 16 4 Function Description ............................................................................................................................ 17 r 4.1 Radio Transceiver ...................................................................................................................... 17 4.1.1 RF Front End ..................................................................................................................... 17 Fo 4.1.2 Receiver ............................................................................................................................ 17 4.1.3 Transmitter ........................................................................................................................ 18 4.1.4 Synthesizer........................................................................................................................ 18 4.2 Baseband Procession Unit......................................................................................................... 18 4.2.1 Bluetooth Frame Data Processor ...................................................................................... 19 4.2.2 Modulator and Demodulator.............................................................................................. 19 4.2.3 Bluetooth Timing Processing Unit ..................................................................................... 19 4.3 MCU and Memory ...................................................................................................................... 19 AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 3 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 4.4 Power Control and PMU ............................................................................................................ 20 4.4.1 External Reset ................................................................................................................... 21 4.4.2 Buck Regulator .................................................................................................................. 22 4.4.3 Power Management .......................................................................................................... 22 4.4.4 Battery monitor ADC.......................................................................................................... 23 5 Software Stack....................................................................................................................................... 24 5.1 Key Features of HID Device Stack ............................................................................................ 24 6 7 5.2 Development Environment and Tool .......................................................................................... 25 5.2.1 Software Development Environment................................................................................. 25 5.2.2 Test and Configuration Tools ............................................................................................. 25 l Interface Description ............................................................................................................................ 26 6.1 UART ......................................................................................................................................... 26 tia 6.2 I2C.............................................................................................................................................. 27 Package Information............................................................................................................................. 28 ConFfiodrenCompx 7.1 Package Information .................................................................................................................. 28 AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 4 of 30 CONFIDENTIAL List of Figures Figure 1-1 AB1126A Functional Block Diagram ......................................................................................... 9 Figure 2-1 Pin Definition ........................................................................................................................... 10 Figure 4-1 AB1126A Transceiver Block Diagram ..................................................................................... 17 Figure 4-2 AB1126A Baseband Block Diagram ........................................................................................ 18 Figure 4-3 AB1126A MCU and Memory ................................................................................................... 20 Figure 4-4 System Power Configuration .................................................................................................. 21 Figure 4-5 External Reset Timing ............................................................................................................. 21 l Figure 4-6 Buck Regulator Circuit ............................................................................................................ 22 Figure 5-1 AB1126A Software Stack......................................................................................................... 24 tia Figure 6-1 I2C Write Sequences for 8-bit Register Addressing Mode ..................................................... 27 Figure 6-2 I2C Read Sequences for 8-bit Register Addressing Mode ..................................................... 27 Figure 6-3 I2C Read Sequences with Current Address for 8-bit Register Addressing Mode .................. 27 n Figure 6-4 I2C Write Sequences for 16-bit Register Addressing Mode ................................................... 27 e Figure 6-5 I2C Read Sequences for 16-bit Register Addressing Mode ................................................... 27 ConFfiodr Compx Figure 7-1 Package Dimension ................................................................................................................ 30 This document is commercially confidential and must NOT be disclosed to third parties without prior consent. The information provided herein is believed to be reliable. But production testing may not include testing of all parameters. AIROHA Technology Corp. reserves the right to change information at any time without notification. ( HTTP://WWW.AIROHA.COM.TW TEL:+886-3-6128800 FAX:+886-3-6128833 sales@airoha.com.tw ) AB1126A Bluetooth 3.0 Single Chip List of Tables Table 2-1 Pin Description.......................................................................................................................... 12 Table 3-1 Absolute Maximum Ratings ...................................................................................................... 13 Table 3-2 Recommended Operating Conditions ...................................................................................... 13 Table 3-3 Digital Terminals ....................................................................................................................... 14 Table 3-4 Reference Clock ....................................................................................................................... 14 Table 3-5 Switching Regulator.................................................................................................................. 14 l Table 3-6 Typical Current Consumption ................................................................................................... 15 tia Table 3-7 Transmitter Basic Data Rate..................................................................................................... 16 Table 3-8 Receiver Basic Rate ................................................................................................................. 16 Table 4-1 Power-on Timing Parameters ................................................................................................... 22 ConFfiodrenCompx Table 6-1 UART Configuration Parameters.............................................................................................. 27 AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 6 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip Revision History Version 0.10 Created Change Summary Date Feb, 2nd, 15 Author Max Lee ConFfiodrenCtoiamlpx AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 7 of 30 CONFIDENTIAL 1 System Overview 1.1 General Description AB1126A is an optimized single-chip solution which integrates baseband and radio for wireless human input device applications especially for remote smartphone camera control. It complies with Bluetooth system version 3.0. 1.2 Features tial  Compliant with Bluetooth 3.0 specification  HID profile version 1.1 compliant  Support I2C EEPROM interface n  Support UART interface for firmware downloading and peripheral control  Embedded 2 LED drivers with fader fide x  Low cost ROM based design with customer code support  Embedded power management unit p  Integrated Buck  Single RF port for transmitter and receiver n m  Receiver sensitivity of -89dBm at basic data rate  Transmit power up to +4dBm with 20 dB gain tuning range o o  QFN 4mm x 4mm 32 pin package C C 1.3 Block Diagram r AB1126A comprises three major parts, a 2.4G RF transceiver, a power manager unit, and a MCU platform. o The heart of the MCU platform is an 8051 microcontroller with 160 Kbytes ROM for programs and 16 Kbytes F SRAM for run-time data. The power management unit integrates a high efficient DC-DC convert (BUCK). This document is commercially confidential and must NOT be disclosed to third parties without prior consent. The information provided herein is believed to be reliable. But production testing may not include testing of all parameters. AIROHA Technology Corp. reserves the right to change information at any time without notification. ( HTTP://WWW.AIROHA.COM.TW TEL:+886-3-6128800 FAX:+886-3-6128833 sales@airoha.com.tw ) AB1126A Bluetooth 3.0 Single Chip ConFfiodrenCtoiaml px Figure1-1AB1126AFunctionalBlockDiagram AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 9 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 2 Product Description 2.1 Pin Definition ConFfiodrenCtoiamlpx AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Figure 2-1 Pin Definition Page 10 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 2.2 Pin Description PIN SIGANL TYPE DESCRIPTION 1 UART_TX Output, Digital UART Tx data output 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 UART RX VCCRF RF_P l WAKE tia PIO1 PIO2 PIO3 VCCVCO n SDA fide x VCCPLL VSSPLL p NC NC n m WP SCL o o PIO4 C r C PIO5 Fo NC Input, Digital Supply, 1.6V~1.9V Input/Output, single RF Input, Digital Input, Digital Input, Digital Input, Digital Supply, 1.6V~1.9V Input/Output, Digital Supply, 1.6V~1.9V Ground UART Rx data input VCC for TX/RX front-end RF input/output P Input Pin with 80K pull up Input Pin with 26k pull up Input Pin with 26k pull up Input Pin with 26k pull up VCC for VCO I2C data line VCC for PLL Ground for PLL Output, Digital Input/Output, Digital Input/Output, Digital Input/Output, Digital Write Protect Control for EEPROM I2C clock line Programmable IO Alternative function: 1. UART_CTS: UART clear to send Programmable IO Alternative function 1. UART_RTS: UART request to send 20 NC 21 LED0 Open Drain LED 0 for Red Light 22 LED1 Open Drain LED 1 for Blue Light 23 RST_N Input, Digital Global reset 24 BAT_P Supply Battery input P, as Switching regulator and IO 25 LX Analog Switching Regulator output AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 11 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 26 VSSPWR Ground Power manager ground 27 PIO6 Input/Output, Digital Programmable IO 28 PIO7 Input/Output, Digital Programmable IO 29 PIO8 Input/Output, Digital AIO, Analog Programmable IO Alternative function: 1. Analog input 30 VCCXO Supply, 1.6V~1.9V VCC for XO and Digital 31 XTAL_OUT ConFfiodrenCtoiaml px 32 XTAL_IN Analog Crystal output Analog Crystal input Table 2-1 Pin Description AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 12 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 3 Electrical Characteristics 3.1 Absolute Maximum Ratings ITEM I/O supply voltage/Switching Regulator supply voltage (BAT_P) MIN. -0.3 MAX. 5.5 UNIT V l Operating temperature -10 +60 C tia Storage temperature -65 +150 C LNA input level - +10 dBm PA output load mismatch - 10:1 n Table 3-1 Absolute Maximum Ratings e AB1126A could be damaged by any stress in excess of the absolute maximum ratings listed above fid px 3.2 Recommended Operating Conditions Item Min. Typ. n m Core supply voltage (VCCRF, VCCVCO, VCCPLL, VCCXO) 1.6 o o I/O supply voltage /Switching Regulator supply voltage 2 (BAT_P) C C Table 3-2 Recommended Operating Conditions Max. Unit 1.9 V 5.5 V r 3.3 Digital Terminals Fo Item Min. Typ. Max. Unit Input Voltage Levels Input logic level low (VIL) 0 0.3*BAT_P V Input logic level high (VIH) 0.7* BAT_P BAT_P +0.4 V Output Voltage Levels ( BAT_P=1.8V ) Output logic level low (VOL), IO=4.0mA * 0.4 V Output logic level high (VOH), IO=-4.0mA ** 0.7* BAT_P V AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 13 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip Output Voltage Levels ( BAT_P=3.3V ) Output logic level low (VOL), IO=4.0mA * Output logic level high (VOH), IO=-4.0mA ** 0.7* BAT_P 0.4 V V Table 3-3 Digital Terminals 3.4 Reference Clock Item Min. Crystal Requirement l Nominal Frequency tia Operating Temperature Range -30 aging -20 Drive level Load capacitance n Frequency tolerance fide x Frequency Stability over Operating Temperature Range -10 Crystal Oscillator Characteristics p Tuning Range -30 Negative resistance n m Table 3-4 Reference Clock o o 3.5 Switching Regulator C C External inductor = 10uH, External capacitor = 10uF Item Condition Min. r Input Voltage 2 oNormal mode 1.6 Output Voltage FRetention mode 1.55 Typ. 16 25 100 9 -150 Typ. 1.65 Max. 85 +20 +10 +30 Max. 5.5 1.9 1.75 Unit MHz ℃ ppm uW pF ppm ppm Ω Unit V V V Rated Output Current (Iout) 100 mA Switching Frequency 1.3 MHz Power Efficiency @Iout=40mA 90 % Table 3-5 Switching Regulator AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 14 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 3.6 Typical Current Consumption Core Supply Voltage = 1.8V @ 25℃ unless other specified. Item Condition Min. Typ. Max. Unit Transmit Peak Current 39 mA Receive Peak Current 34 mA Sniff mode 25 ms 500 ms 0.853 mA 0.159 mA l Sleep 16MHz XO off, internal slow clock in 24 uA use tia Deep sleep (disconnected, link Buck off, wake on by all GPIOs loss state, wake on interrupt) 2.5 uA Table 3-6 Typical Current Consumption The transmit, receive and sniff mode current consumptions were measured directly on the buck output (1.8V n at 25°C), while the sleep and deep sleep current was measured at battery output fide x 3.9 Radio Characteristics n mp 3.9.1 Transmitter o o Core Supply Voltage = 1.8V @ 25℃ Item C C Maximum RF transmit Power*1 RF power control range r 20dB bandwidth for modulated carrier o+2MHz F Adjacent channel transmit -2MHz Min. Typ. 2 20 Max. 1000 -20 -20 Unit dBm dB KHz dBm dBm power +3MHz -40 dBm -3MHz -40 dBm Frequency deviation Average deviation in payload 115 Maximum deviation in payload 140 KHz 175 KHz Initial carrier frequency tolerance -75 75 KHz Drift DH1 packet -25 25 KHz AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 15 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip DH3 packet -40 DH5 packet -40 Drift Rate -20 Harmonic Content -45 Table 3-7 Transmitter Basic Data Rate *1 The maximum RF transmit power could reach 4dBm with appropriate settings 40 KHz 40 KHz 20 KHz/50us dBm 3.9.2 Receiver l Core Supply Voltage = 1.8V @ 25℃ tia Item 2.402GHz Sensitivity at 0.1% BER 2.441GHz 2.480GHz n Maximum input power at 0.1% BER fide x Co-Channel interference F = F0+5MHz p Adjacent channel selectivity on om C/I F = F0+4MHz F = F0+3MHz F = F0+2MHz F = F0+1MHz F = F0 F = F0-1MHz C C Adjacent channel selectivity r C/I F = F0-2MHz F = F0-3MHz (Fimage) F = F0-4MHz oF = F0-5MHz F Maximum level of intermodulation interference Min. -20 Typ. -89 -89 -89 Max. 11 -40 -40 -40 -30 0 11 0 -20 -9 -20 -40 -39 Unit dBm dBm dBm dBm dB dB dB dB dB dB dB dB dB dB dB dB dBm 30-2000 MHz -10 dBm Blocking @Pin=-67dBm with 2000-2400 MHz 0.1%BER 2500-3000 MHz -27 dBm -27 dBm 3000-12750 MHZ -10 dBm Table 3-8 Receiver Basic Rate AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 16 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 4 Function Description 4.1 Radio Transceiver The AB1126A RF transceiver is a 2.4GHz-band transceiver for the Bluetooth HID applications. There are three main functions – transmitter, receiver, and synthesizer. The enable control signals of these functions are given by the Baseband Processing Unit. tial LNA RX VGA RXIQ n RF I/O ports T/R SW fide px TXVGA Synthesizer VCO & PLL XO 16MHz crystal TXIQ Baseband Processing Unit Enable Control n m Figure 4-1 AB1126A Transceiver Block Diagram o o 4.1.1 RF Front End C C The RX input ports and TX output ports share the same RF terminals such that no external T/R switch is r required. Only a few matching components are placed outside the RF terminals Fo 4.1.2 Receiver The AB1126A RF receiver is composed of two parts: RF front-end and IF part. The RF front-end part comprises a LNA and a quadrature mixer. The IF part comprises a low-pass filter (LPF) for out-band filtering and a variable gain amplifier (VGA). The LNA input shares the same RF ports with TX output. The RX front-end gain could be adjusted, and thus reduce the probability of bit errors caused by poor signal-to-noise ratio. The LNA is followed by a quadrature AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 17 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip mixer that down-converts the RF signal to IF band. At the IF part, the down-converted signal is first low-pass filtered by the LPF, amplified by the VGA, and then forwarded to the ADC for demodulation. The 3dB bandwidth of the LPF could be adjusted through RF registers. The LNA and VGA provide more than 80dB gain control range 4.1.3 Transmitter The AB1126A RF transmitter comprises a LPF, a modulator and a VGA stage. The TX baseband signals are fed from baseband DAC, generated by the baseband modulators. A LPF is implemented to attenuate the second side lobe of signal spectrum and unwanted oversampling clock or spurious signals. The 3dB l bandwidth of the LPF could be adjusted through RF registers. The VGA provides variable gain with more than 25dB dynamic range, and could be controlled through the RF register interface. tia 4.1.4 Synthesizer n The AB1126A implements a fractional-N synthesizer with embedded VCO and loop filter without the need of e external components. AB1126A also integrates an internal crystal oscillator, and only a 16MHz crystal is fid x required externally. p 4.2 Baseband Procession Unit n m The Baseband Processing Unit (BPU) comprises a Digital-to-Analog Convert (DAC), an Analog-to-Digital o o Converter (ADC), a digital modulator, a digital demodulator, a Bluetooth Frame Data Processor, and a Timing Processing Unit (TPU). C or C Radio F Transceiver Baseband Processing Unit ADC Demodulator Bluetooth Frame Data Processor DAC Modulator MCU Bluetooth Timing Processing Unit Figure 4-2 AB1126A Baseband Block Diagram RAM . AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 18 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 4.2.1 Bluetooth Frame Data Processor AB1126A baseband processing unit supports all packet types of Bluetooth 1Mbps mode. On the transmitter side, the frame data processor can construct Bluetooth data packet according to the packet type given by MCU. The constructed data packet then will be converted to analog modulated signal format by the modulator and DAC. On the receiver side, the received analog signal will be first converted to digitized data format by the ADC and demodulator, and then the frame data processor will de-construct the received data to several parts and l identify if the received signal is a valid Bluetooth packet and if the packet is for the device itself. Only if it is, the received header data and PSDU data will be stored into memory. tia Access code check, Header Error Check (HEC) and PSDU CRC checking functions are performed by the frame data processor to see whether or not this received signal is valid and error free. A data whitening circuit and an encryption engine are also included in the frame data processor for both transmitter and receiver n paths fide x 4.2.2 Modulator and Demodulator p Both modulator and demodulator of AB1126A support GFSK signal only. EDR data rates (DQPSK and D8PSK) n m are not supported. o o 4.2.3 Bluetooth Timing Processing Unit C C A Bluetooth Timing Processing Unit (TPU) is embedded in the Baseband processing unit. TPU is in charge of generating RF timing control signals to the RF radio part, such as TX enabling signals and RX enabling r signals Fo 4.3 MCU and Memory AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 19 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip tial Figure 4-3 AB1126A MCU and Memory The micro-control unit (MCU) executes the Bluetooth protocol software stack, controls the Bluetooth baseband processing unit (BPU) and Serial Communication Interfaces. 160Kbytes ROM is embedded in n AB1126A to store the software stack, and 16Kbytes RAM is provided to support the MCU and baseband data fide x processing. Data are transferred between MCU, ROM, RAM and BPU with a shared memory bus. The UART interface is p also connected to the memory bus for direct access. There is another peripheral bus that connects the peripherals with MCU on om 4.4 Power Control and PMU C C AB1126A integrates a Power Management Unit (PMU), one internal DC-DC switching regulator (BUCK) and For one battery monitor ADC. AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 20 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip fidential px Figure 4-4 System Power Configuration n m 4.4.1 External Reset o o AB1126A provides an external reset pin, RST_N, than can reset the whole system. The reset function is valid C C only when the system is power-on. The external reset timing is shown in Figure 4-5. The Trst should be greater For than 1us. Figure 4-5 External Reset Timing AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 21 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip Parameter Trst Tpoweron Description Min External reset time 1us Power on settling time Table 4-1 Power-on Timing Parameters Value Typ Max 100 ms 4.4.2 Buck Regulator The Buck regulator is embedded to convert VBAT to 1.8V voltage to supply AB1126A. The Buck out voltage l will supply AB1126A core directly. The below block shows the buck circuit with LC component fidentia x 1.8V Buck Regulator BAT_P LX 10uH Buck Regulator Out 10uF on omp Figure 4-6 Buck Regulator Circuit C C 4.4.3 Power Management r The PMU is designed in AB1126A for the power management tasks. The PMU controls the Buck Regulator Fo power in sequence. During general operations, MCU may enter the sleep mode for power saving. During power saving, the PMU monitors the keys and wakes up the MCU if one of the keys is pressed. PMU also monitors the battery voltage and reports to MCU. AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 22 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 4.4.4 Battery monitor ADC AB1126A embed one ADC to monitor Battery voltage. The ADC monitors Battery via the pin BAT_P or PIO8. In some application PIO8 can become Analog input function to monitor analog voltage like battery that we can set in the EEPROM. ConFfiodrenCtoiamlpx AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 23 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 5 Software Stack 5.1 Key Features of HID Device Stack The software architecture of Airoha AB1126A is shown in Figure 5-1. It provides a total solution of Bluetooth HID profile (device role) especially for Bluetooth remote camera controller for smart phones. In addition, it has some extra features as shown below: l  Configurable MMI: Customers can modify user interface behavior by setting registers in EEPROM. In tia additional, AB1126A provides a set of function interfaces in the ARIOHA Customer Code Environment. Customers can re-write these functions to configure their own MMI.  Support auto detection of iOS and Android, and send its corresponding key code to control the shutter. n  It is very easy to configure the key codes for different operation systems of smart phone including iOS and Android. It is even possible to send two key codes for each click of the button. fide x  Low-power operation based on various hardware-wakeup mechanisms. n mp  o oHID C CSDAP rSDP Data Center MMI Profile Manager Connection Center L2CAP GAP Fo HCI Middleware Airoha Defined Interface Component Bluetooth Defind Component Host LM Controller LC Customer Defind Component Hardware Figure 5-1 AB1126A Software Stack AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 24 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 5.2 Development Environment and Tool 5.2.1 Software Development Environment AB1126A provides a set of function interfaces in the ARIOHA Customer Code Environment. Customers can rewrite these functions to control their hardware components, such as keypad and LED. 5.2.2 Test and Configuration Tools l Various tools are provided for testing and configuration as shown below: tia  AB1126A LabTest  AB1126A LabTest provides the capability for RF testing and can be used for the HID module n testing during mass-production. e  AB1126A Configuration tool fid x  AB1126A Configuration tool provides customers with the capability to configure various MMI ConFor Comp settings, such as Button I/O, LED behavior, and Battery Parameters stored in EEPROM. AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 25 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 6 Interface Description The total number of I/O pins of AB1126A is 8, including 3 pins dedicated for input only. Other 5 I/O pins are programmable and support both input and output. There are also 2 LED drivers, and 1 I2C interface connected to MCU with a peripheral bus. There is also a UART interface for firmware downloading and peripheral control. The LED drivers integrate fader function and can drive red and blue LEDs for HID device indication purposes. l The I2C interface is used to connect to EEPROM and other peripheral devices such as touch-pad, with tia 100KHz/400KHz/800KHz bus clock rate at 1.8/3.3V voltage level 6.1 UART n AB1126A utilizes a Universal Asynchronous Receiver Transmitter (UART). It supports flexible configurations e as listed below. There are local FIFOs and DMA that can achieve high throughput serial communications. fid px Configuration Parameters Data Length Flow control on om Parity C C Number of stop bits For Baud rate Supported Values 8 bits Hardware RTS/CTS None Even Odd None 1 or 2 1200 2400 4800 9600 19200 38400 57600 76800 1152000 AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 26 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 230400 460800 921600 1843200 Table 6-1 UART Configuration Parameters 6.2 I2C The I2C in AB1126A is a master interface. It supports 100, 400 and 800 KHz clock rates. For controlling EEPROM, a dedicated write protect (WP) signal is also supported. The I2C interface provides several data l formats and can fit various I2C peripherals. Sequential read and write are supported to improve throughputs. tia 8-bit Register Addressing Mode: Write Figure 6-1 I2C Write Sequences for 8-bit Register Addressing Mode en 8-bit Register Addressing Mode: Read fid px Figure 6-2 I2C Read Sequences for 8-bit Register Addressing Mode 8-bit Register Addressing Mode: Read with Current Address on om Figure 6-3 I2C Read Sequences with Current Address for 8-bit Register Addressing Mode C C 16-bit Register Addressing Mode: Write r Figure 6-4 I2C Write Sequences for 16-bit Register Addressing Mode Fo 16-bit Register Addressing Mode: Read Figure 6-5 I2C Read Sequences for 16-bit Register Addressing Mode AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 27 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip 7 Package Information 7.1 Package Information ConFfiodrenCtoiamlpx AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 28 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip ConFfiodrenCtoiamlpx AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 29 of 30 CONFIDENTIAL AB1126A Bluetooth 3.0 Single Chip ConFfiodrenCtoiaml px Figure7-1PackageDimension AB1126A Bluetooth 3.0 Single Chip Preliminary Specification Version 0.1 Feb-2015 Page 30 of 30 CONFIDENTIAL

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