User's Manual

Smart Machine Smart Decision
SIM7100A_User Manual_V1.01 2014-12-11
18
circuit.
GND
1,2,5,10
,14,37,4
0,41,43,
57,58,6
0,61,64,
65,77,7
8,80,81
Ground
Power on/off
PWRKEY 3 DI
PWRKEY should be pulled low
at least 180ms to power on or
500ms to power off the module.
PWRKEY has been
pulled up to 1.8V in
the module.
SD interface
SD_CMD 21 I/O SDIO command
If unused, please keep
open.
SD_DATA0 22 I/O SDIO data
SD_DATA1 23 I/O SDIO data
SD_DATA2 24
I/O SDIO data
SD_DATA3 25 I/O SDIO data
SD_CLK 26 DO SDIO clock
USIM interface
USIM_DATA 17 I/O SIM Data Output/Input
All signals of SIM
interface should be
protected against
ESD/EMC.
USIM_RST 18 DO SIM Reset
USIM_CLK 19 DO SIM Clock
USIM_VDD 20 PO
Voltage Supply for SIM card
Support 1.8V or 3V SIM card
SPI interface
SPI_CLK 6
DO
SPI clock
If unused, please keep
open.
SPI_MISO 7 DI
SPI (master only) master in/slave
out data
SPI_MOSI 8 DO
SPI(master only) master out/slave
in data
SPI_CS 9 DO SPI chip-select
USB
USB_VBUS 11 DI Valid USB detection input
USB_DN 12 I/O
Negative line of the differential,
bi-directional USB signal to/from
the peripheral device.
USB_DP
13 I/O
Positive line of the differential,
bi-directional USB signal to/from
the peripheral device.