FALCOM I56 Hardware Description page 43

I65/I56I HARDWARE DESCRIPTION
user inserts after having removed a SIM card during operation. In this
case, the application must restart I56/I56i.
5.6.8.3 Design considerations for SIM card holder
The schematic below is a sample configuration that illustrates the Molex SIM
card holder. X503 is the designation used for the SIM card holder.
Figure 14: SIM card holder
Pin Signal name
1 SIMVCC
2 SIMRST
3 SIMCLK
4 GND
5 CCVPP
6 SIMDATA
7 CCDET1
8 CCDET2
Table 15: Pin assignment of Molex SIM card holder on DSB45 Support Box
Pins 1 through 8 (except for 5) are the minimum requirement according to the
GSM recommendations, where pins 7 and 8 are needed for SIM card tray
detection through the SIMPRES pin.
Figure 15: Pin numbers of Molex SIM card holder
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I/O Function
I Supply voltage for SIM card, generated by the GSM
engine
I Chip card reset, prompted by the GSM engine
I Chip card clock
- Ground line for the SIM card
- Not connected
I/O Serial data line, bi-directional
- Connect to SIMVCC
- Connects to the SIMPRES input of the GSM engine.
Serves to recognize whether a SIM card is in the
holder.
VERSION 1.00
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