User's Guide

MM6108-MF08251 User Guide UG100
IEEE 802.11ah Sub-1G Wi-Fi HaLow Module
Page 7/19
Table 2: Pin Description
Pin
Name
Type
Primary Function
Alternate & Other Function(s)
1
GND
Power
Ground
2
GND
Power
Ground
3
GND
Power
Ground
4
JTAG_TCK
[1]
I
JTAG Clock
5
JTAG_TDI
[1]
I
JTAG Data In
6
NC
NC
Do Not Connect
7
JTAG_TMS
[1]
I
JTAG Mode Select
8
JTAG_TRST
I
JTAG Reset
9
JTAG_TDO
[1]
O
JTAG Data Out
10
NC
I/O
Do Not Connect
11
GPIO10
[2]
I/O
General Purpose IO10
12
GND
Power
Ground
13
GPIO9
[2]
I/O
General Purpose IO9
14
GPIO8
[2]
I/O
General Purpose IO8
15
GPIO7
[2]
I/O
General Purpose IO7
UART1_TX
16
SDIO_D1
[3]
I/O
SDIO D1
17
SDIO_D0
[3]
I/O
SDIO D0
18
SDIO_CLK
I/O
SDIO Clock
19
VDD_IO
Power
3.3V VDD_IO Supply
20
GND
Power
Ground
21
SDIO_CMD
[3]
I/O
SDIO Command
22
SDIO_D3
[3]
I/O
SDIO D3
23
SDIO_D2
[3]
I/O
SDIO D2
24
GPIO6
[2]
I/O
General Purpose IO6
UART1_RX
25
VBAT
Power
3.3V VBAT Supply
26
GND
Power
Ground
27
GPIO5
[2]
I/O
General Purpose IO5
I2C_SCL
28
GPIO4
[2]
I/O
General Purpose IO4
I2C_SDA
29
GPIO3
[2]
I/O
General Purpose IO3
UART0_TX, PWM1_3
30
GPIO2
[2]
I/O
General Purpose IO2
UART0_RX, PWM1_2
31
GND
Power
Ground
32
VDD_FEM
Power
3.3V Frontend Module Supply
33
GPIO1
[2]
I/O
General Purpose IO1
PWM1_1
34
GPIO0
I/O
WiFi BUSY
PWM1_0
35
RESET_N
I
System Reset
36
WAKE
I
Wake
37
GND
Power
Ground
38
ANT
Analog
Antenna
-
GND
Ground
Exposed ground pad - Connect to PCB
GND
[1] JTAG pins should be tied to GND via a 10k pull down resistor
[2] All unused GPIO should be tied to GND via a 10k pull down resistor
[3] All SDIO bus pins should be pull up with a 10 … 100k resistor as per the the SDIO standard