LMX9830 Datasheet, PDF (39/46 Pages) National Semiconductor (TI) – BluetoothTM Serial Port Module

13.0 Usage Scenarios
13.1 SCENARIO 1: POINT-TO-POINT
CONNECTION
LMX9830 acts only as slave, no further configuration is
required.
Example: Sensor with LMX9830; hand-held device with
standard Bluetooth option.
The SPP conformance of the LMX9830 allows any device
using the SPP to connect to the LMX9830.
Because of switching to Transparent automatically, the con-
troller has no need for an additional protocol layer; data is
sent raw to the other Bluetooth device.
On default, a PinCode is requested to block unallowed tar-
geting.
Sensor Device
Connected
on Port L
UART
Inquiry Request
Inquiry Response
SDP Link Request
SDP Link Accept
Service Browse
Service Response
Release SDP Link
Release Confirm
SPP Link Request
SPP Link Accept
Transparent Mode
Air Interface
Standard Device
with Bluetooth
Search for Devices
Get Remote Services
Establish SPP Link
Link Established
Raw Data
Microcontroller
LMX9830
No Bluetooth™ commands necessary
only “connected” event indicated to controller
The client software only
shows high level functions
Figure 24. Point-to-Point Connection
39
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