CSR BlueCore CSR8640 BGA, User Manual

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Figure 9.7 Speaker Output ............................................................................................................................... 44
Figure 9.8 Side Tone ........................................................................................................................................ 45
Figure 9.9 PCM Interface Master ..................................................................................................................... 48
Figure 9.10 PCM Interface Slave ....................................................................................................................... 48
Figure 9.11 Long Frame Sync (Shown with 8-bit Companded Sample) ............................................................ 49
Figure 9.12 Short Frame Sync (Shown with 16-bit Sample) .............................................................................. 49
Figure 9.13 Multi-slot Operation with 2 Slots and 8-bit Companded Samples ................................................... 50
Figure 9.14 GCI Interface ................................................................................................................................... 50
Figure 9.15 16-bit Slot Length and Sample Formats .......................................................................................... 51
Figure 9.16 PCM Master Timing Long Frame Sync ........................................................................................... 53
Figure 9.17 PCM Master Timing Short Frame Sync .......................................................................................... 53
Figure 9.18 PCM Slave Timing Long Frame Sync ............................................................................................. 55
Figure 9.19 PCM Slave Timing Short Frame Sync ............................................................................................ 55
Figure 9.20 Digital Audio Interface Modes ......................................................................................................... 57
Figure 9.21 Digital Audio Interface Slave Timing ............................................................................................... 58
Figure 9.22 Digital Audio Interface Master Timing ............................................................................................. 59
Figure 10.1 1.80V and 1.35V Dual-supply Switch-mode System Configuration ................................................ 61
Figure 10.2 1.80V Parallel-supply Switch-mode System Configuration ............................................................. 62
Figure 10.3 1.8V Switch-mode Regulator Output Configuration ........................................................................ 63
Figure 10.4 1.35V Switch-mode Regulator Output Configuration ...................................................................... 64
Figure 10.5 1.8V and 1.35V Switch-mode Regulators Outputs Parallel Configuration ...................................... 65
Figure 11.1 Battery Charger Mode-to-Mode Transition Diagram ....................................................................... 70
Figure 11.2 Battery Charger External Mode Typical Configuration .................................................................... 72
Figure 16.1 Programmable Audio Prompts in External SPI Flash ..................................................................... 95
Figure 16.2 Programmable Audio Prompts in External I²C EEPROM ................................................................ 95
Figure 16.3 2-mic CVC Block Diagram .............................................................................................................. 97
Figure 16.4 Configurable EQ GUI with Drag Points ......................................................................................... 100
Figure 16.5 Volume Boost GUI with Drag Points ............................................................................................. 101
Figure 18.1 Tape Orientation ........................................................................................................................... 103
Figure 18.2 Tape Dimensions .......................................................................................................................... 103
Figure 18.3 Reel Dimensions ........................................................................................................................... 104
List of Tables
Table 3.1 Crystal Specification ......................................................................................................................... 26
Table 7.1 Possible UART Settings ................................................................................................................... 31
Table 7.2 Standard Baud Rates ....................................................................................................................... 31
Table 8.1 Alternative PIO Functions ................................................................................................................. 34
Table 9.1 Alternative Functions of the Digital Audio Bus Interface on the PCM1 Interface ............................. 36
Table 9.2 ADC Audio Input Gain Rate ............................................................................................................. 40
Table 9.3 DAC Digital Gain Rate Selection ...................................................................................................... 41
Table 9.4 DAC Analogue Gain Rate Selection ................................................................................................. 41
Table 9.5 Sidetone Gain ................................................................................................................................... 46
Table 9.6 PCM Master Timing .......................................................................................................................... 52
Table 9.7 PCM Slave Timing ............................................................................................................................ 54
Table 9.8 Alternative Functions of the Digital Audio Bus Interface on the PCM Interface ............................... 56
Table 9.9 Digital Audio Interface Slave Timing ................................................................................................ 57
Advance Information
This material is subject to CSR's non-disclosure agreement
© Cambridge Silicon Radio Limited 2011
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CS-209182-DSP1
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CSR8640 BGA
Data Sheet