User's Manual

Smart Machine Smart Decision
SIM5320A_Hardware Design_V1.01 2011-2-29
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PCM_SYNC/GPIO2 I
General Input PIN. It also can be
multiplexed as the PCM_SYNC pin.
PCM_CLK/GPIO3 O
General Output PIN. It also can be
multiplexed as the PCM_CLK pin.
PCM_DOUT/GPIO5 O
General Output PIN. It also can be
multiplexed as the PCM_DOUT pin.
GPIOs
GPIO1 O
Output PIN as LED control for
network status.
GPIO4 I Input PIN as RF operating control.
GPIO40 O
Output PIN as operating status
indicating of module.
GPIO41 I/O
General input/output PIN. It can be
used as wake/interrupt signal to host
from module
GPIO43 I/O
General input/output PIN. It can be
used as wake/interrupt signal to
module from host.
GPIO44 I/O General input/output PIN.
GPIO42 I/O General input/output PIN.
If it is unused, keep open.
Other interface
RESET I System reset in, active low.
CURRENT_SINK I
Current source of ground-referenced
current sink
Refer to 3.13
ADC1 I Analog Digital Converter Input Refer to 3.13
ADC2 I Battery temperature ADC input pin
Detailed description please
refers to chapter 3.1.2.
MAIN_ANT I/O ANT soldering pad
GPS_ANT I/O GPS ANT soldering pad