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CC2564C Datasheet(PDF) 39 Page - Texas Instruments

Part # CC2564C
Description  CC2564C Dual-Mode Bluetooth® Controller
PDF  58 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

CC2564C Datasheet(HTML) 39 Page - Texas Instruments

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Host Processor
Bluetooth Stack
CC256x
Bluetooth Controller
HCI
HCI
Control
A2DP
Profile
Audio
codec
Data
Control
44.1 kHz
48 kHz
A2DP Sink Architecture
Assisted A2DP Sink Architecture
AVDTP
L2CAP
Data
16 bits
PCM
/
I2S
SBC
Host Processor
Bluetooth Stack
CC256x
Bluetooth Controller
HCI
HCI
Contro
l
A2DP
Profile
Audio
codec
Data
Control
44.1 kHz
48 kHz
AVDTP
L2CAP
16 bits
PCM
/
I2S
SBC
L-AVDTP
L-L2CAP
Copyright © 2016, Texas Instruments Incorporated
39
CC2564C
www.ti.com
SWRS199B – APRIL 2016 – REVISED JUNE 2020
Submit Documentation Feedback
Product Folder Links: CC2564C
Detailed Description
Copyright © 2016–2020, Texas Instruments Incorporated
6.4.4.2.1 Assisted A2DP Sink
The role of the A2DP sink is to receive the audio stream in an A2DP Bluetooth connection. In this role, the
A2DP layer and its underlying layers are responsible for link management and data decoding. To handle
these tasks, two logic transports are defined:
•
Control and signaling logic transport
•
Data packet logic transport
The assisted A2DP takes advantage of this modularity to handle the data packet logic transport in the
CC2564C device. First, the assisted A2DP implements a light L2CAP layer (L-L2CAP) and light AVDTP
layer (L-AVDTP) to defragment the packets. Then the assisted A2DP performs the SBC decoding on-chip
to deliver raw audio data through the device PCM–I2S interface. Figure 6-16 shows the comparison
between a common A2DP sink architecture and the assisted A2DP sink architecture.
Figure 6-16. A2DP Sink Architecture Versus Assisted A2DP Sink Architecture
For more information on the A2DP sink role, see the A2DP Profile Specification at Adopted Bluetooth
Core Specifications.



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