Texas Instruments SWRU294, User Manual, Page: 22 / 57

SWRU294
Page 22/40
EM pin Signal name Description
I/O breakout
EM MSP430
RF2.1 NC Not connected
RF2.2 GND Ground P7.20
RF2.3 NC Not connected
RF2.4 NC Not connected
RF2.5 NC Not connected
RF2.6 P25C_1 GPIO signal P25C.1
RF2.7 RF_PWR EM power
RF2.8 P25C_2 GPIO signal P25C.2
RF2.9 RF_PWR EM power
RF2.10 P25D_1 GPIO signal P25D.1
RF2.11 P25B_1 GPIO signal P25B.1
RF2.12 P25D_2 GPIO signal P25D.2
RF2.13 P25B_2 GPIO signal P25B.2
RF2.14 P25E_1 GPIO signal P25E.1
RF2.15 RF_RESET_N Signal used to reset EM board P7.10 P8.0
RF2.16 NC Not connected
RF2.17 P8_1 GPIO signal to EM board P7.11 P8.1
RF2.18 P1_2 / RF_SPI1_SCLK GPIO signal to EM board / Alt. SPI P7.3 P1.2
RF2.19 P1_0 GPIO signal to EM board P7.1 P1.0
RF2.20 NC Not connected
Table 8
– EM connector RF2 pin-out
6.11 Breakout Headers and Jumpers
Header P7 and P25A-E give access to main EM connector pins, while P11, P14, P16 and P18-
P24 give access to the MSP430 I/O (section 6.11.2). Some signals can be accessed from both
the EM I/O breakout headers and the MSP430 I/O breakout as indicated by Figure 13.
RF2 RF1
MSP430
MCU
EM Connectors
EM I/O Breakout
P7, P25
MSP430 I/O Breakout
Figure 13
– SmartRF TrxEB I/O breakout overview