Installation Instructions

SIM5216A _HD_V1.02 Hardware Design
SIM5216A _HD_V1.02 26.08.2010
17
USIM_RESET O SIM Reset
IIC interface
PIN NAME I/O DESCRIPTION DC CHARACTERISTICS
IIC_SDA I/O I2C data, if not in use, left open. It
has been pulled up with a 2.2kR
resistor to 2.6V in module. So there is
no need to pull up it in your
application circuit.
IIC_SCL O I2C clock output, if not in use, left
open. It has been pulled up with a
2.2kR resistor to 2.6V in module. So
there is no need to pull up it in your
application circuit.
Other interface
PIN NAME I/O DESCRIPTION DC CHARACTERISTICS
Reset I System reset in, active low. Reset pin has been pulled
up in SIM5216A. Detail
description refer to chapter
3.12.
GPIO0/PCM_DIN I General Input PIN with interrupt. If
not in use, left open. It also can be
multiplexed as the PCM_DIN pin.
GPIO1 O Status Indicating LED Control.
GPIO2/PCM_SYNC I General Input PIN. If not in use, left
open. It also can be multiplexed as
the PCM_SYNC pin.
GPIO3/PCM_CLK O General Output PIN. If not in use, left
open. It also can be multiplexed as
the PCM_CLK pin.
GPIO4 I RF Control: Flight Modem switch
GPIO5/PCM_DOUT O General Output PIN. If not in use, left
open. It also can be multiplexed as
the PCM
_
DOUT
p
in.
VIHmin=0.7*VDD_EXT
*
VIHmax= VDD_EXT+0.3
VOLmin=GND
VOLmax=0.2V
VOHmin= VDD_EXT-0.2
VOHmax= VDD_EXT
*Note: module internal reference supply power: VDD_Ext=2.6V
3.2 Operating modes
The following table summarizes the various operating modes, each operating modes will be
referred to in the following chapters.
Table 6：Overview of operating modes
Mode Function
Normal operation Module Power
Off mode
Module will go to Power off mode when the Power on pin has
been pushed low for 2 Seconds.