User`s manual

AIR B-Smart BoosterPack – User’s Manual Page 23 of 33
Release Date 11/04/13
 J8 – Radio Module Test Points/External MCU Interface
0.1” pitch header for connecting an external MCU to the BoosterPack via UART and or
GPIO interface. Power may be provided to the external device by the BoosterPack
assuming J1-1 is connected to a suitable power supply. Alternatively, an external power
source may be used to provide power to the BoosterPack via this interface. Even row
not populated (default).
Table 15 – J8 A2541 Test Points & External MCU Connector Pinout
Pin
Signal Name
I/O
Description
J8-1
GND
-
Ground reference
J8-2
P2_0
-
Test point
J8-3
P0_5/RTS
O
UART Request To Send
-
Not Used
(LaunchPad MCU or onboard MSP430)
J8-4
P1_0
-
Test point
J8-5
LP_VDD
I
Supply input from external source. External supply
powers BoosterPack and external MCU. A2541
DC-DC converter must be in Bypass mode.
O
Supply output to external MCU. BoosterPack
powered by J1-1 and provides supply voltage to
external MCU. A2541 DC-DC converter must be in
Bypass mode.
-
Not Used
(LaunchPad MCU or onboard MSP430)
J8-6
P0_7
-
Test point
J8-7
P0_2/RXD
I
UART Receive Data
-
Not Used
(LaunchPad MCU or onboard MSP430)
J8-8
P0_6
-
Test point
J8-9
P0_3/TXD
O
UART Transmit Data
-
Not Used
(LaunchPad MCU or onboard MSP430)
J8-10
P0_1
-
Test point
J8-11
P0_4/CTS
I
UART Clear To Send
-
Not Used
(LaunchPad MCU or onboard MSP430)
J8-12
P0_0
-
Test point