Cavli Wireless C16QS - USIM Interface

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C16QS Hardware Manual
3.7 USIM Interface
The C16QS module provides a USIM card interface compatible with the ISO 7816-3 standard. The USIM card
power supply is provided by the module's internal power manager and supports 1.8V/3.0V
Table 3-12 SIM card signal definition
3.7.1 USIM Card Reference Circuit
The C16QS module does not come with a uSIM card slot. Users need to design a USIM card slot on their own
interface board. The module supports USIM of voltages 1.8V and 2.85V.
The USIM card interface reference circuit is as follows:
Figure 11 USIM design circuit diagram
No
Signal name
I/O
Description
42
USIM_PRESENCE
I
Sim detect
43
USIM_VDD
PO
USIM card power supply
45
USIM_DATA
IO
USIM card data
46
USIM_CLK
DO
USIM card clock
44
USIM_RST
DO
USIM card reset