User's Manual Part 1

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10 LED#1 O
Open Drain, active low signal
used for add-in card to
provide status
3.3 V
11 GND P Ground -
12 SLOT KEY
13 SLOT KEY
14 SLOT KEY
15 SLOT KEY
16 SLOT KEY
17 SLOT KEY
18 SLOT KEY
19 SLOT KEY
20
AUDIO0 IO PCM Clock (I2S_CLK) 1.8 V
21
CONFIG_0 O Configuration Status.
Presently not connected on
WWAN M.2 module.
-
22
AUDIO1 I PCM In (I2S_RX) 1.8 V
23 WAKE_WWAN# O Wake On WWAN
Use by M.2 to wake up host.
1.8 V
24
AUDIO2 O PCM Out (I2S_TX) 1.8 V
25 DPR I Dynamic Power Reduction -
Body SAR control signal
1.8 V
26 GNSS_DISABLE# I Disable GNSS function 1.8 V
27 GND P Ground -
28
AUDIO3 IO PCM Sync (I2S_WA0) 1.8 V
29 SSIC_RxN I SSIC Receive N
(Not Supported)
-
30 UIM-RESET O SIM Reset (I) 1.8
V/3.0 V
31 SSIC_RxP I SSIC Receive P
(Not Supported)
-
32 UIM-CLK O SIM Clock (I) 1.8
V/3.0 V
33 GND - Ground -
34 UIM-DATA IO SIM Data (I/O) 1.8
V/3.0 V
35 SSIC_TxN O SSIC Transmit N
(Not Supported)
-
36 UIM-PWR O SIM power 1.8
V/3.0 V
37 SSIC_TxP O SSIC Transmit P
(Not Supported)
-
38 N/C - Not connected internally on
M.2
-
39 GND P Ground -
40 I2C_SCL IO I2C Clock – GNSS Support 1.8 V