Specifications

L506 Hardware Design
Copyright© Shanghai Mobiletek Communication Ltd 23
flight mode; L: normal
mode
Module status(GPIO)
Pin Name
Pin No.
I/O
Description
Content
NETLIGHT
51
DO
Identify the system
network status.
STATUS
40
DO
Module status
identify: High level
power on, low level
power off.
WIFI/BT interface（WIFI Version）
Pin name
Pin No.
I/O
Description
content
SD1_CMD
32
DO
SDIO command
WIFI SDIO, only
WIFI version use,
if not use keep it
open.
SD1_DATA0
33
I/O
SDIO data
SD1_DATA1
29
I/O
SDIO data
SD1_DATA2
27
I/O
SDIO data
SD1_DATA3
31
I/O
SDIO data
SD1_CLK
36
DO
SDIO clock
WLAN_EN
30
DO
WIFI module enable pin
If not use keep it
open.
WIFI3V3_EN
42
DO
WIFI module power
supply enable pin
If not use keep it
open.
WLAN_32K_SLEEP_C
LK
35
DO
WIFI module clock
If not use keep it
open.
VREG_L2_1V8
34
PO
WIFImodule 1.8V power
supply
Only for WIFI use,
if not use keep it
open.
SD interface
Pin Name
Pin No.
I/O
Description
Content
SD_CMD
21
DO
SDIO command
Advice add the ESD
on you SD card
Slot. If not use
keep it 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
SD_CARD_DET_N
48
DI，PU
Input pin as SD card
detecting.
H: SD card is removed
L: SD card is inserted
L506 have internal
pull up, so SD card
slot should choose
insert detect PIN
connect the
ground. If not use