Texas Instruments SWRU294, User Manual, Page: 23 / 57

SWRU294
Page 23/40
6.11.1 EM I/O breakout headers
The EM I/O breakout headers on SmartRF TrxEB consist of header P7 and I/O connector P25.
P25 is made out of five 2-pin connectors (P25A-E). The layout of these connectors is shown in
Figure 14. Table 7 and Table 8 in section 6.10 shows how the EM I/O connector headers are
mapped to EM connector RF1 and RF2, respectively.
Figure 14
– I/O connector P25A-E PCB layout
6.11.2 MSP430 I/O breakout
MSP430 ports 1-10 are on SmartRF TrxEB available through the MSP430 I/O breakout shown in
Figure 15. Table 9 lists I/O breakout for ports 1-5, while Table 10 covers ports 6-10. Both tables
indicate if the given MSP430 pin is connected to an EM connector pin. For additional info on the
MSP430 pin-out on SmartRF TrxEB, please refer to section 9.4.
Figure 15
– MSP430 I/O breakout on SmartRF TrxEB
P25E
1 2
P25D
1 2
P25C
1 2
P25B
1 2
P25A
1 2