User Manual
EMMY-W1 series - User Manual
UBX-16015271 - R03 Product Information Pin Definition
Page 19 of 46
No
Pin name
Pin type
Supply domain
Description
23
GND
Ground
-
Ground
24
GND
Ground
-
Ground
25
3V3
Power
3.3V
3.3V Power supply (2.97 V - 3.63 V)
26
VIO1
Power
VIO1
VIO1 Power supply (1.62V - 1.98 V, 2.97 V - 3.63 V)
27
VIO2
Power
VIO2
VIO2 Power supply (1.62V - 1.98 V, 2.97 V - 3.63 V)
28
PDn
Input
-
Full power down(active low)
8
29
GPIO_8
I/O
VIO2
UART_SOUT (Output)
30
GPIO_9
I/O
VIO2
UART_SIN (Input)
31
GPIO_10
I/O
VIO2
UART_CTSn (Input)
32
GPIO_11
I/O
VIO2
UART_RTSn (Output)
33
GPIO_3
I/O
3.3V
LED_OUT_BT (Output) - BT indicator, Configuration pin
9
34
GPIO_2
I/O
3.3V
LED_OUT_WLAN (Output) - WLAN indicator, Configuration pin
9
35
GND
Ground
-
Ground
36
NFC_ANT_N
I/O, RF
3.3V
NFC Coil Antenna, negative I/O pin
37
NFC_ANT_P
I/O, RF
3.3V
NFC Coil Antenna, positive I/O pin
38
GND
Ground
-
Ground
39
GND
Ground
-
Ground
40
ANT2
I/O, RF
-
Bluetooth antenna only in case of EMMY-W163 module. Not connected in
case of EMMY-W161 or EMMY-W165 module
10
41
GND
Ground
-
Ground
42
GND
Ground
-
Ground
43
GND
Ground
-
Ground
44
GND
Ground
-
Ground
45
ANT1
I/O, RF
-
Wi-Fi + Bluetooth antenna in case of single-antenna module. Wi-Fi antenna
only in case of dual-antenna module10
46
GND
Ground
-
Ground
-
Exposed pin
Ground
-
Six Ground/Thermal exposed pins, connect to the ground
Table 12: EMMY-W1 series pin description
3.2 Reset configuration
The EMMY-W1 is reset to its default operating state under the following conditions:
Power-on reset (POR) – Module receives power 3V3 supplies rise (triggers internal POR circuit)
Software/Firmware reset
External pin assertion (PDn) will generate POR.
8
High input impedance pin for minimizing shutdown current consumption. The pin shall be driven by the host controller or/and connected
via 51 kΩ (or less) pull-up resistor to the 3.3 V supply rail.
9
Possible to use as an LED output depending on the firmware and driver version. In this case, the module pin acts as an open drain output
and the whole LED circuitry must be supplied from 3.3 V power line. A LED current limiting resistor should be used; maximum sink current to
the ground is 10 mA. These pins can also be used for host interface configuration. See Operation mode configuration section.
10
Pin protected from the static electricity by internal DC feed to the ground.