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Configurations
13
SWRU271H–October 2010–Revised April 2019
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The TI Bluetooth Low Energy Software Development Platform
• Network Processor: The controller and host layers are implemented together on the CC2540/41, while
the profiles and the application are implemented separately on an external host processor. The
application and profiles communicate with the CC2540/41 through vendor-specific HCI commands
using an SPI, a UART interface, or a virtual UART interface over USB. This configuration is optimal for
applications that execute on another device such as an external microcontroller or a PC. When using
this type of application, you can develop it externally while running the Bluetooth Low Energy stack on
the CC2540/41. To use the network processor, you must use the HostTestRelease project.
Figure 2-2. Network Processor Configuration
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