User's Manual

Table Of Contents
J3 (SMA)
I/O_SEL Jumper
USB Interface
MSP430F2370/TRF7970A
Communication Header
(default configuration shown)
MSP430
JTAG Interface
Reset Switch
MSP430F2370
TRF7970A
13.56-MHz Crystal
PCB Magnetic Dipole
Power and Protocol
LED Indicators
Resistor R3
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TRF7970A EVM Description
Figure 1. TRF7970A EVM (Top Side)
If a logic analyzer is to be connected to the TRF7970A EVM, the user can install three-position 2-mm
board headers at positions HDR_1 and HDR_3 for observation of DATA_CLK and IRQ signals. An
8-position 2-mm board header can be installed at position HDR_5 for observation of the parallel or SPI
signals between the MSP430F2370 and the TRF7970A. See the PCBA silkscreen or Table 1 and Table 2
for reference.
Table 1. Logic Analyzer Connection Points on EVM at HDR_5
HDR_5 Pin Parallel Name SPI With SS Name SPI Without SS Name
P5_7 I/O_7 MOSI MOSI
P5_6 I/O_6 MISO MISO
P5_5 I/O_5
P5_4 I/O_4 Slave Select
P5_3 I/O_3
P5_2 I/O_2 VDD_I/O voltage level (VDD_X on EVM) VDD_I/O voltage level (VDD_X on EVM)
P5_1 I/O_1 GND
P5_0 I/O_0 GND GND
5
SLOU321 August 2011 TRF7970A Evaluation Module (EVM)
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