AIR BoosterPack – User’s Manual
Page 29 of 45
Release Date 11/2/12
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Radio Module Pin Mapping
The AIR BoosterPack board provides the ability to remap several of the radio module’s
I/O pins to different MCU pins. JP102, JP105, and JP108 consist of one or more 0603
SMT pads which allow a zero Ohm resistor to be soldered in place to select the desired
jumper position. The default signal routing is determined by a small trace between one
set of pads. To change jumper positions, this trace needs to be cut and a zero Ohm
resistor soldered in the new position.
JP102, in conjunction with R100, selects whether the radio module’s reset signal is
generated by MCU pin P2.5 or P2.7. This allows applications requiring a crystal on the
MCU to use a different pin for radio module reset, at the expense of giving up the use of
the Green segment of the Tri-Color LED.
SRDY is a required signal when using a secondary MCU with the A2530 radio module,
there JP105 should not be modified.
JP108 can be used to select whether MRDY is tied to MODULE_SS or uses its own
MCU pin. Some applications may require MRDY to be isolated from MODULE_SS. In
these cases, MRDY can be configured to use MCU pin P1.4 instead of P2.0, at the
expense of giving up the use of the Current Sensor.
Table 10 – JP102 Jumper Settings
Radio
MCU Signal
Jumper Position Signal
Description
Name
Name
Closed
Open
MRST connected to MCU pin P2.7 (default)
MRST disconnected from MCU pin P2.7
P2.7
/MRST
JP102
MRST
Table 11 – JP105 Jumper Settings
Radio
MCU Signal
Name
Jumper Position Signal
Description
Name
Closed
Open
SRDY connected to MCU pin P2.2 (default)
SRDY disconnected from MCU pin P2.2
P2.2/
SRDY
JP105
SRDY
Table 12 – JP108 Jumper Settings
Radio
MCU Signal
Name
Jumper Position Signal
Name
Description
P2.0/
MODULE_SS
1
MRDY connected to MCU pin P2.0 (default)
MRDY connected to MCU pin P1.4
P1.4/
CUR/
MRDY/
JP108
MRDY
2
EXT_CSN
ANAREN [ ANAREN MICROWAVE ]
