Anaren A2530E24A, Руководство пользователя

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AIR BoosterPack
– User’s Manual
Page 27 of 45
Release Date 11/2/12

Radio Module GPIO (S4)
These DIP switches are used to electrically isolate the LEDs and pull-down resistors
from the A2530 GPIO signals fo
r applications that require the GPIO but don’t want the
added load of the resistors and LEDs. Positions 1 and 2 (GPIO0 and GPIO1,
respectively) may also be used as user input.
The default state of all DIP switches is ON (closed).
Table 5 – Radio Module GPIO DIP Switch Settings (S4)
Switch Position Signal Name Description
S4
1 GPIO0
Provides a method for changing the state of the
A2530 GPIO input.
ON (closed): Signal is pulled to GND through a
2K
Ω Ohm resistor.
OFF (open): Signal is floating.
2 GPIO1
Provides a method for changing the state of the
A2530 GPIO input.
ON (closed): Signal is pulled to GND through a
2K
Ω Ohm resistor.
OFF (open): Signal is floating.
3 GPIO2
A2530 Yellow LED connect/disconnect.
ON (closed): Yellow LED is enabled and may be
turned on by driving its control signal
high.
OFF (open): Yellow LED is disabled and cannot
be turned on, regardless of the state
of its control signal.
4 GPIO3
A2530 Red LED connect/disconnect.
ON (closed): Red LED is enabled and may be
turned on by driving its control signal
high.
OFF (open): Red LED is disabled and cannot be
turned on, regardless of the state of
its control signal.