LB-Link BL-M8821CS1, Quick Start Manual

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B-LINK ELECTRONIC CO., LTD in shenzhen
6
3.6 Product Pin Definition
1 GND Grond
2 WIFI/BT_ANT WIFI/BT_ANT
3 GND Grond
4,5 NC NC
6 BT_WAKE HOST wake-up Bluetooth device
7 BT_HOST_WAKE Bluetooth device to wake-up HOST
8 NC NC
9 VABT Battery LDO input,5.5V-2.8V
10,11 NC NC
12 WL_DSI#
Shared with GPIO9 This Pin Can Externally Shutdown the
RTL8821CS
WLAN function when WL_DIS# is Pulled Low. When this
pin pulled low, SDIO interface will be disabled.
13 WL_HOST_WAKE WLAN to wake-up HOST
14 SD_D2 SDIO data line 2
15 SD_D3 SDIO data line 3
16 SD_CMD SDIO command line
17 SD_CLK SDIO CLK line
18 SD_D0 SDIO data line 0
19 SD_D1 SDIO data line 1
20 GND Grond
21 NC NC
22 VDD_IO supply voltage for SDIO IO/3.3V
Pin No
：
Function Description