Specifications

PLS63-W Hardware Interface Overview 2.1
Application Interface
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2.1.4 UICC/SIM/USIM Interface
PLS63-W has two UICC/SIM/USIM interfaces (includes eSIM interface) compatible with the
3GPP 31.102 and ETSI 102 221. These are wired to the host interface in order to be connected
to an external SIM card holder. Five pads on the SMT application interface are reserved for
each of the two SIM interfaces.
The UICC/SIM/USIM interface supports 3V and 1.8V SIM cards. Please refer to Table 1 for
electrical specifications of the UICC/SIM/USIM interface lines depending on whether a 3V or
1.8V SIM card is used.
The CCINx signal serves to detect whether a tray (with SIM card) is present in the card holder.
Using the CCINx signal is mandatory for compliance with the GSM 11.11 recommendation if
the mechanical design of the host application allows the user to remove the SIM card during
operation.
Note: No guarantee can be given, nor any liability accepted, if loss of data is encountered after
removing the SIM card during operation. Also, no guarantee can be given for properly initializ-
ing any SIM card that the user inserts after having removed the SIM card during operation. In
this case, the application must restart PLS63-W.
By default, only the module’s 1
st
SIM interface is available and can be used. The usage of the
module’s 2
nd
SIM interface has to be configured by AT command.
As an alternative to connecting the module’s two SIM interfaces and switching between these via
AT command, it is possible to connect the first of the module’s SIM interfaces via an external SIM
switch that in turn provides access to a further SIM interface. For details see Section 2.1.4.1.
Table 1: Signals of the SIM interface (SMT application interface)
Signal Description
GND Ground connection for SIM interfaces. Optionally a separate SIM ground line using e.g.,
pad N11, may be used to improve EMC.
CCCLK1
CCCLK2
Chipcard clock lines for 1
st
and 2
nd
SIM interface.
CCVCC1
CCVCC2
SIM supply voltage lines for 1
st
and 2
nd
SIM interface.
CCIO1
CCIO2
Serial data lines for 1
st
and 2
nd
SIM interface, input and output.
CCRST1
CCRST2
Chipcard reset lines for 1
st
and 2
nd
SIM interface.
CCIN1
CCIN2
Input on the baseband processor for detecting a SIM card tray in the holder. If the SIM is
removed during operation the SIM interface is shut down immediately to prevent destruc-
tion of the SIM. The CCINx signal is active low.
The CCINx signal is mandatory for applications that allow the user to remove the SIM card
during operation.
The CCINx signal is solely intended for use with a SIM card. It must not be used for any
other purposes. Failure to comply with this requirement may invalidate the type approval of
PLS63-W.