Hardware Development Guide
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ME3630 mini-PCIE
ME3630 mini-PCIE
4.10
(U)SIM
C
ARD
I
NTERFACE
SIM -- supported through the interface connector. The USIM connector must be placed on the host device for this feature. The signal
group of USIM card is as follows: PIN No: 8/10/12/14). Table below is a detailed description of each signal. Voltage levels over this
interface comply with 3GPP standards.
Table 4-8 Definition and Description of USIM Card Signal
PIN
Signal Definition
Signal Description
8
USIM_VCC
USIM card power, output by Module
10
USIM_DATA
USIM card DATA signal, two-way signal
12
USIM_CLK
USIM card clock signal, output by Module
14
USIM_RST
USIM card reset signal, output by Module
44
USIM_DET
SIM card Detect, need to pull up externally. When detect high level SIM card is
un-existed, detect low SIM card is existed.
To comply with the requirements of 3GPP TS 51.010-1 and EMC authentication, it is recommended to place (U)SIM card console
close to the (U)SIM card interface, to prevent the wiring from being too long, which might seriously distort the waveform and thus
affect the signal integrity.
The following Figure shows the reference design of as well as the recommended circuit of the USIM card. ESD circuit protection and
UIM_DATA pull-up have been added in the board of ME3630 mini-PCIE.
Figure 4–10 Connection Circuit of U(S)IM Card Signal
Module
(Modem)
USIM
Card
Connecter with
detect pin