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reserved.
FIBOCOM SC138-
NA
Series Hardware Guide
22/88
Pin Name
Pin No.
I/O
Pin Description
Remarks
which can be
configured for
low level
shutdown and
restart; do not
pull up
externally.
(U)SIM Interface
UIM1_DATA
25
I/O
(U)SIM 1 data signal
-
UIM1_CLK
24
DO
(U)SIM 1 clock signal
-
UIM1_RESET
23
DO
(U)SIM 1 reset signal
-
UIM1_DETECT 22
DI
(U)SIM 1 plug detection
Off by default
UIM2_DATA
20
I/O
(U)SIM 2 data signal
-
UIM2_CLK
19
DO
(U)SIM 2 clock signal
-
UIM2_RESET
18
DO
(U)SIM 2 reset signal
-
UIM2_DETECT 17
DI
(U)SIM 2 plug detection
Off by default
VREG_L19A_1
P8
26
PO
(U)SIM 1 power supply
1.8 V/3 V self-
adaption
VREG_L20A_1
P8
21
PO
(U)SIM 2 power supply
1.8 V/3 V self-
adaption
SD Interface
SDC2_DATA3
34
I/O
SD data interface
-
SDC2_DATA2
33
I/O
SD data interface
-
SDC2_DATA1
32
I/O
SD data interface
-
SDC2_DATA0
31
I/O
SD data interface
-
SDC2_CLK
29
DO
SD clock
-
SDC2_CMD
30
I/O
SD command interface
-
SD_CARD_DE
35
DI
SD detection
Active low by