User's Manual

2.2. Signal specifications
# Signal name Type I/O Domain Descriptions
1 GND GND GND Ground
2 RESERVED OD VDDIO_GPIO1 Un-used signal. Keep Open.
3 GND GND GND Ground
4 WOW OD OD
Wake on wireless signal. Low: wake up trigger.
Open drain output. Need external pull-up to IO power rail
of the host system.
5 GND GND GND Ground
6 RESERVED DI VDDIO_GPIO1 Un-used signal. Keep Open.
7 GND GND GND Ground
8 GND GND GND Ground
9 VDD P P
Main power supply.
+3.14～+3.46V
10 VDD P P
Main power supply.
+3.14～+3.46V
11 VDD P P
Main power supply.
+3.14～+3.46V
12 WLAN_PWD_L PD VDDIO_GPIO_1 WLAN reset. (0=Enable, 1=Disable) Internal Pull-down.
13 GND GND GND Ground
14 GND GND GND Ground
15 BT_USB_D+ AI,AO VDD
Bluetooth USB 1.1 differential pair
16 BT_USB_D- AI,AO VDD
17 GND GND GND Ground
18 WL_USB_D- AI,AO VDD
Wireless LAN USB2.0 differential pair
19 WL_USB_D+ AI,AO VDD
20 GND GND GND Ground
21 VDDIO_GPIO1 P P
IO power supply.
+1.71 ～ +3.46V
22 GND GND GND Ground
23 BT_PWD_L PD VDDIO_GPIO1
Bluetooth reset. (0=Enable, 1=Disable) Internal Pull-
down.
24 GND GND GND Ground
25 GND GND GND Ground
26 NC NA NA NC pin
27 NC NA NA NC pin