Em Selection Switch - Texas Instruments CC2530 ZigBee Development Kit User Manual

10.3 EM Selection Switch

The EM selection switch on SmartRF05BB controls a multiplexer on the board that allows either a
connected RF SoC EM or an MSP430 add-on board to access all four LEDs on the evaluation board.
The limitation was caused by the particular pin-out on the RF evaluation modules that needed to be
backwards compatible with other boards and test equipment.
The switch will both affect the operation of the LEDs and Button 1.
NB: The EM Selection switch shall be placed in position SoC/TRX when the CC2530EM is used with
SmartRF05BB.
Function on BB Pin Pin
JOYSTICK_PUSH
NC
Not in use on BB
VCC_EM
VCC_EM
JOYSTICK_UP
JOYSTICK_LEFT
SoC Debug P3.7 &
Flash Reset
Not in use on BB
JOY_MOVE
Table 6 EM connector P2 pin out
Figure 10 - EM Selection Switch (P8)
Function on BB
1 2 GND
3 4 IO_LED2_MSP
5 6 IO_LED3_MSP
7 8 IO_LED4_MSP
9 10 NC
11 12 Not in use on BB
13 14 Not in use on BB
15 16 IO_BUTTON2
17 18 Not in use on BB
19 20 Not in use on BB
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