Texas Instruments BoosterPack C5545, Hardware User'S Manual, Page: 17 / 43

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Introduction to C5545 BoosterPack Board
17 SPRUI90 – September 2016
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TMS320C5545 BoosterPack Hardware
2.6 CC2650 SPI and GPIO Interface
The CC2650 device is a wireless MCU targeting Bluetooth, ZigBee, 6LoWPAN and ZigBee RF4CE. The
device is a member of the CC26xx family of cost-effective, ultra-low power, 2.4-GHz RF devices. The
CC2650 device contains a 32-bit ARM Cortex-M3 processor that runs at 48 MHz.
Communication between the CC2650 and the C5545 devices is through a SPI interface using CS2. In
addition, two GPIO signals are connected between the C5545 DSP and the CC2650 MCU for power
management. For CC2650 reset details, see
Section 2.3 .
A 10-pin JTAG header is provided for debugging purposes. The IO voltage expected on this header is 1.8
V.
NOTE: Do not connect the MSP432 LaunchPad JTAG to this header as MSP432 LaunchPad
expects 3.3 V IO voltages.
Figure 9. CC2650 SPI and GPIO Interface
For more information on how to configure the GPIOs for power management functionality, see the GPIO
Mapping table (
Table 3 in Section 2.15 ).