BCM43455 Preliminary Data Sheet
Table of Contents
Bluetooth 4.1 Features...............................................................................................................................39
Bluetooth Low Energy ...............................................................................................................................39
Link Control Layer...................................................................................................................................... 39
Test Mode Support..................................................................................................................................... 40
Bluetooth Power Management Unit.......................................................................................................... 40
RF Power Management ........................................................................................................................ 40
Host Controller Power Management ..................................................................................................... 40
BBC Power Management...................................................................................................................... 43
Wideband Speech.......................................................................................................................... 43
Packet Loss Concealment ............................................................................................................. 43
Audio Rate-Matching Algorithms.................................................................................................... 44
Codec Encoding............................................................................................................................. 44
Multiple Simultaneous A2DP Audio Stream................................................................................... 44
FM Over Bluetooth ................................................................................................................................ 44
Burst Buffer Operation ................................................................................................................... 44
Adaptive Frequency Hopping.................................................................................................................... 45
Advanced Bluetooth/WLAN Coexistence................................................................................................. 45
Fast Connection (Interlaced Page and Inquiry Scans) ........................................................................... 45
Section 6: Microprocessor and Memory Unit for Bluetooth.......................................... 46
RAM, ROM, and Patch Memory................................................................................................................. 46
Reset............................................................................................................................................................ 46
Section 7: Bluetooth Peripheral Transport Unit ............................................................. 47
SPI Interface................................................................................................................................................ 47
SPI/UART Transport Detection.................................................................................................................. 47
PCM Interface.............................................................................................................................................. 48
Slot Mapping ......................................................................................................................................... 48
Frame Synchronization ......................................................................................................................... 48
Data Formatting..................................................................................................................................... 48
Wideband Speech Support ................................................................................................................... 49
Multiplexed Bluetooth Over PCM .......................................................................................................... 49
Burst PCM Mode................................................................................................................................... 49
PCM Interface Timing............................................................................................................................ 50
Short Frame Sync, Master Mode ................................................................................................... 50
Short Frame Sync, Slave Mode ..................................................................................................... 51
Long Frame Sync, Master Mode.................................................................................................... 52
Long Frame Sync, Slave Mode...................................................................................................... 53
Short Frame Sync, Burst Mode...................................................................................................... 54
Long Frame Sync, Burst Mode ...................................................................................................... 55
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 8
BROADCOM CONFIDENTIAL
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