Specifications

SIM7912&SIM7906 Hardware Design V1.02
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PCIe_TX_P
183
AO
PCIe transmit plus
PCIe_RX_M
185
AI
PCIe receive minus
PCIe_RX_P
186
AI
PCIe receive plus
PCIe_CLK_
REQ_N
188
DI
P3
PCIe clock request
In master mode, it is an
input signal.
In slave mode, it is an
output signal.
If unused, keep it open.
PCIe_WAKE
190
DI
P3
PCIe wake-up
In master mode, it is an
input signal.
In slave mode, it is an
output signal.
If unused, keep it open.
PCIe_RST
189
DO
P3
PCIe reset
In master mode, it is an
output signal.
In slave mode, it is
an input signal.
If unused, keep it open.
WLAN Control interface*
Pin name
Pin
No.
Electrical description
Description
Comment
WLAN_PWR_
EN
5
DO
P3
WLAN power supply
enable control
1.8V power domain.
If unused, keep it open.
COEX_UART_T
X
145
DO
P3
LTE/WLAN coexistence
signal
1.8V power domain.
If unused, keep it open.
COEX_UART_R
X
146
DI
P3
LTE/WLAN coexistence
signal
1.8V power domain.
If unused, keep it open.
WLAN_EN
149
DO
P3
WLAN function enable
control
1.8V power domain.
Active high.
If unused, keep it open.
WAKE_ON_
WIRELESS
160
DI
P3
Wake up module by an
external Wi-Fi module
1.8V power domain.
Active low.
If unused, keep it open.
WLAN_SLP_
CLK
169
DO
P3
WLAN sleep clock
If unused, keep it open.
SDIO interface
Pin name
Pin
No.
Electrical description
Description
Comment
SD_VDD
46
PO
1.8/3.0V
SD card application:
SDIO pull up power
source. Connected it to
VDD_P2.
eMMC application:
Keep it open when used
for eMMC