LTE-A Module Series
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2) The host should control RESET# and PERST# based on the timing sequence.
3) If the host fails to control RESET# and PERST# based on the timing sequence, instability in
PCIe will be caused.
4) When the FULL_CARD_POWER_OFF# signal is low, please avoid any leakage current entering
the module's DPR pin from the host.
3.6. (U)SIM Interface
The (U)SIM interface circuitry meets ETSI and IMT-2000 requirements. Both 1.8 V and 3.0 V (U)SIM
cards are supported, and Dual SIM Single Standby function is supported.
Table 12: Pin Definition of (U)SIM Interface
3.6.1. (U)SIM Hot-Plug
The module supports (U)SIM card hot-plug via the (U)SIM card hot-plug detect pin (USIM_DET), which is
enabled by default. (U)SIM card is detected by USIM_DET interruption. (U)SIM card insertion is detected
by high/low level.
Pin Name
Pin No.
I/O
Description
Comment
USIM_VDD
36
PO
Power supply for (U)SIM card
USIM_DATA
34
DIO,
PU
(U)SIM card data
Internally pulled up.
USIM_CLK
32
DO
(U)SIM card clock
USIM_RST
30
DO
(U)SIM card reset
USIM_DET
66
DI
(U)SIM card hot-plug detect
