Specifications

Cinterion
®
ALAS66A Hardware Interface Overview
2.1 Application Interface
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 ALAS66A_HIO_v01.000a 2019-02-26
Confidential / Released
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2.1.5 UICC/SIM/USIM Interface
ALAS66A has a UICC/SIM/USIM interface compatible with the 3GPP 31.102 and ETSI 102
221. It is 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 the SIM interface.
The UICC/SIM/USIM interface supports 2.85V and 1.8V SIM cards.
The CCIN signal serves to detect whether a tray (with SIM card) is present in the card holder.
Using the CCIN 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 oper-
ation. To take advantage of this feature, an appropriate SIM card detect switch is required on
the card holder. For example, this is true for the model supplied by Molex, which has been test-
ed to operate with ALAS66A and is part of the Gemalto M2M reference equipment submitted
for type approval. See Chapter 7 for Molex ordering numbers.
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 ALAS66A.
Table 3: Signals of the SIM interface (SMT application interface)
Signal Description
GND Ground connection for SIM interfaces. Optionally a separate SIM ground line may be used
to improve EMC.
CCCLK Chipcard clock line for SIM interface.
CCVCC SIM supply voltage line for SIM interface.
CCIO Serial data line for SIM interface, input and output.
CCRST Chipcard reset line SIM interface.
CCIN 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 CCIN signal is active low.
The CCIN signal is mandatory for applications that allow the user to remove the SIM card
during operation.
The CCIN 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
ALAS66A.