User's Manual

Cinterion
®
AGS2-E Hardware Interface Overview
3.4 SIM/USIM Interface
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 AGS2-E_HIO_v00.021 2014-03-20
Confidential / Preliminary
Page 22 of 40
3.4 SIM/USIM Interface
The baseband processor has an integrated SIM/USIM card interface compatible with the ISO/
IEC 7816 IC Card standard. This is wired to the host interface in order to be connected to an
external SIM card holder. Five pads are reserved for the SIM interface. AGS2-E supports and
automatically detects 3.0V as well as 1.8V SIM cards.
The CCIN pad serves to detect whether a tray is present in the card holder. Using the CCIN
pad is mandatory for compliance with the 3GPP TS 11.11 (Rel.99) recommendation if the me-
chanical design of the host application allows the user to remove the SIM card during operation.
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 tested to op-
erate with AGS2-E and is part of the Gemalto M2M reference equipment submitted for type ap-
proval. See Chapter 9 for Molex ordering numbers.
Table 8: Signals of the SIM interface (SMT application interface)
Signal Description
CCCLK Chipcard clock, various clock rates can be set in the baseband processor.
CCVCC SIM supply voltage from PSU-ASIC
CCIO Serial data line, input and output.
CCRST Chipcard reset, provided by baseband processor
CCIN Input on the baseband processor for detecting a SIM card tray in the holder.The default
level of CCIN is low (internal pull down resistor, no card inserted). It will change to high level
when the card is inserted. To take advantage of this feature, an appropriate contact is
required on the cardholder. Ensure that the cardholder on your application platform is wired
to output a high signal when the SIM card is present.
The CCIN pad is mandatory for applications that allow the user to remove the SIM card dur-
ing operation.
The CCIN pad 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 AGS2-E.