WE866E4-P Module Hardware User Guide
1VV0301487 Rev. 1.2 14 2018-07-27
PRELIMINAR
Y
F8 I2C_SDA Input/Output Data CMOS VIO
GP
IO_6
G8 I2C_SCL Input/Output Clock CMOS VIO GPIO_7
Analog Interface
A8 ADC_IN1 Input 12 BITS 1Mhz VIO 1V8 only
A9 ADC_IN2 Input 12 BITS 1Mhz VIO 1V8 only
B9 ADC_IN3 Input 12 BITS 1Mhz VIO 1V8 only
Digital Audio Interface (I2S) Master/Slave
C5 I2S_SYNC Input/Output Synchronization CMOS VIO
D5 I2S_SCK Input/Output Clock CMOS VIO
C6 I2S_SDI Input Input Data CMOS VIO
D6 I2S_SDO Output Output Data CMOS VIO
Miscellaneous Functions
G5 WiFI_EN Input Power Enable CMOS VIO Active HI
G6 BT_EN Input Power Enable CMOS VIO Active HI
D1 ANT_1 Input/Output Wi-Fi 2.4G and 5G RF 50Ohms
G3 ANT_2 Input/Output BT 2.4G CMOS VIO 50Ohms
D3 GPIO_1 Input/Output GENERIC IO CMOS VIO WAKEUP
E3 GPIO_2 Input/Output GENERIC IO CMOS VIO BT_PRIORITY
F5 GPIO_3 Input/Output GENERIC IO CMOS VIO WI-FI ACTIVE
F6 GPIO_4 Input/Output GENERIC IO CMOS VIO BT_ACTIVE
F7 GPIO_5 Input/Output GENERIC IO CMOS VIO DAC_OUT
Power Supply
A1 VDD_BLE Input Main BLE Power Supply Power
A2 VDD_WLAN Input Main Wi-Fi Power Supply Power
A3 VIO Input Digital I/O Power Supply Power
B1 GND Ground Power
B2 GND Ground Power
C1 GND Ground Power
C2 GND Ground Power
D2 GND Ground Power
E1 GND Ground Power
E2 GND Ground Power
F1 GND Ground Power
F2 GND Ground Power
F3 GND Ground Power
Table 2 WE866E4-P Module Pin Signal Description (Continued)
Pins Name Input/Output Function Type Comments
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