TiWi-uB1 Module
EM BOARD USER GUIDE
The information in this document is subject to change without notice.
330-0134-R1.0
Copyright © 2013 LS Research, LLC
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3.7 Connecting EM Board to Host Platform
The TiWI-uB1 can be operated in one of two different modes,
determined by
the firmware
programmed into the module:
Stand Alone Mode - This is the most common configuration when using the TiWi-uB1 Module.
In this mode, the controller, host, profiles, and application are all implemented on the TiWi-uB1
module as a true stand alone Bluetooth BLE solution. No interface to a host is required.
Network Processor Mode - The controller and host are implemented together on the TiWi-uB1
module, while the profiles and application are implemented separately. The application and
profiles communicate with the TiWi-uB1module by means of HCI commands using a SPI or
UART interface.
This configuration is useful for applications which execute on either another
device (such as an external microcontroller) or a PC. In these cases, the application can be
developed externally while still running the BLE stack on the CC2540/41.
The TiWi-uB1EM board uses USART 0 as the default UART interface and USART 1 as the
default SPI interface (Figure 4).
Figure 4 TiWi-uB1 EM Board Interface to Host