CC2564MODACMOG datasheet(21/68 Pages) TI2

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Data

Control

Event

UART transport layer

General

modules:

HCI vendor-

specific

Trace

Timers

Sleep

Host controller interface

HCI data handler

HCI command handler

Link manager

Link controller

SWRS121-016

Data

CC2564MODN, CC2564MODA

www.ti.com

SWRS160E – FEBRUARY 2014 – REVISED JANUARY 2017

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Product Folder Links: CC2564MODN CC2564MODA

Detailed Description

5.6

Bluetooth Transport Layers

Figure 5-3 shows the Bluetooth transport layers.

Figure 5-3. Bluetooth Transport Layers

5.7

Host Controller Interface

The TI Bluetooth HCI module incorporates one UART module dedicated to the HCI transport layer. The

HCI interface transports commands, events, ACL between the device and the host using HCI data

packets.

The maximum baud rate of the UART module is 4 Mbps; however, the default baud rate after power up is

set to 115.2 kbps. The baud rate can thereafter be changed with a VS command. The device responds

with a command complete event (still at 115.2 kbps), after which the baud rate change occurs.

The UART module includes the following features:

•

Receiver detection of break, idle, framing, FIFO overflow, and parity error conditions

•

Transmitter underflow detection

•

CTS and RTS hardware flow control (UART Transport Layer)

•

XON and XOFF software flow control (3-wire UART Transport Layer)

Table 5-2 lists the UART module default settings.

Table 5-2. UART Module Default Settings

PARAMETER

VALUE

Bit rate

115.2 kbps

Data length

8 bits

Stop bit

Parity

None

5.7.1

UART Transport Layer

The UART Transport Layer includes four signals:

•

CTS

•

RTS

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