BC41B143A-DS-002PD Datasheet, PDF (3/89 Pages) List of Unclassifed Manufacturers – BlueCore 4-ROM CSP EDR Single Chip Bluetooth v2.0 + EDR System

Contents
8.6.1
8.6.2
8.6.3
8.6.4
8.6.5
8.6.6
8.6.7
8.6.8
8.6.9
Memory Management Unit ......................................................................................................... 40
Burst Mode Controller ................................................................................................................ 40
Physical Layer Hardware Engine DSP....................................................................................... 40
RAM ........................................................................................................................................... 40
ROM........................................................................................................................................... 40
USB............................................................................................................................................ 41
Synchronous Serial Interface ..................................................................................................... 41
UART ......................................................................................................................................... 41
Audio PCM Interface .................................................................................................................. 41
8.7 Microcontroller ....................................................................................................................................... 41
8.7.1 Programmable I/O...................................................................................................................... 41
8.7.2 802.11 Coexistence Interface .................................................................................................... 41
9 CSR Bluetooth Software Stacks ................................................................................................................. 42
9.1 BlueCore HCI Stack .............................................................................................................................. 42
9.1.1 Key Features of the HCI Stack – Standard Bluetooth Functionality ........................................... 42
9.1.2 Key Features of the HCI Stack - Extra Functionality .................................................................. 44
9.2 BCHS Software ..................................................................................................................................... 45
9.3 Additional Software for Other Embedded Applications .......................................................................... 45
9.4 CSR Development Systems .................................................................................................................. 45
10 Enhanced Data Rate .................................................................................................................................... 46
10.1 Enhanced Data Rate Baseband ............................................................................................................ 46
10.2 Enhanced Data Rate π/4 DQPSK.......................................................................................................... 46
10.3 Enhanced Data Rate 8DPSK................................................................................................................. 47
11 Device Terminal Descriptions..................................................................................................................... 49
11.1 RF_A and RF_B .................................................................................................................................... 49
11.1.1 Transmit RF Power Control for Class 1 Applications ................................................................. 50
11.1.2 Control of External RF Components .......................................................................................... 51
11.2 External Reference Clock Input (XTAL_IN) ........................................................................................... 51
11.2.1 External Mode ............................................................................................................................ 51
11.2.2 XTAL_IN Impedance in External Mode ...................................................................................... 52
11.2.3 Clock Timing Accuracy............................................................................................................... 52
11.2.4 Clock Start-Up Delay.................................................................................................................. 52
11.2.5 Input Frequencies and PS Key Settings..................................................................................... 53
11.3 Crystal Oscillator (XTAL_IN, XTAL_OUT) ............................................................................................. 54
11.3.1 XTAL Mode ................................................................................................................................ 54
11.3.2 Load Capacitance ...................................................................................................................... 55
11.3.3 Frequency Trim .......................................................................................................................... 55
11.3.4 Transconductance Driver Model ................................................................................................ 56
11.3.5 Negative Resistance Model ....................................................................................................... 56
11.3.6 Crystal PS Key Settings ............................................................................................................. 57
11.3.7 Crystal Oscillator Characteristics ............................................................................................... 57
11.4 UART Interface...................................................................................................................................... 60
11.4.1 UART Bypass............................................................................................................................. 62
11.4.2 UART Configuration while RESETB is Active ............................................................................ 62
11.4.3 UART Bypass Mode................................................................................................................... 62
11.5 USB Interface ........................................................................................................................................ 63
11.5.1 USB Data Connections .............................................................................................................. 63
11.5.2 USB Pull-Up Resistor................................................................................................................. 63
11.5.3 Power Supply ............................................................................................................................. 63
11.5.4 Self-powered Mode .................................................................................................................... 63
11.5.5 Bus-powered Mode .................................................................................................................... 64
11.5.6 Suspend Current ........................................................................................................................ 65
11.5.7 Detach and Wake-Up Signalling ................................................................................................ 65
11.5.8 USB Driver ................................................................................................................................. 65
11.5.9 USB Compliance........................................................................................................................ 66
11.5.10 USB 2.0 Compatibility .......................................................................................................... 66
11.6 Serial Peripheral Interface ..................................................................................................................... 66
11.6.1 Instruction Cycle......................................................................................................................... 66
11.6.2 Writing to BlueCore4-ROM CSP ................................................................................................ 67
BC41B143A-ds-002Pd
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