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LE910Cx HW User Guide
Note:
LE910Cx variants.
Please contact your Telit representative for more details.
The LE910Cx SDIO port supports the SDIO 3.0 specification at 1.8V CMOS only, so it cannot
be used as an external SD/MMC card connection.
The LE910Cx module supports an LTE/WiFi coexistence mechanism via the WCI (Wireless
Coexistence Interface) port, which connects between the module and the external WiFi
IC.
For
a
detailed
explanation,
Fi_Interface_Application_Note_r1.
PAD
Signal
N13
WIFI_SD_CMD
L13
WIFI_SD_CLK
J13
WIFI_SD_DATA0
M13
WIFI_SD_DATA1
K13
WIFI_SD_DATA2
H13
WIFI_SD_DATA3
L12
WIFI_SDRST
M8
WCI_TX
M9
WCI_RX
Table 32: WiFi SDIO Interface Signals
Audio Interface
The LE910Cx module supports a digital audio interface.
8.6.1.
Digital Audio
The LE910Cx module can be connected to an external codec through the digital interface.
The product provides Digital Audio Interface (PCM/I2S) on the following pins:
1VV0301298 Rev. 33
Qualcomm QCA9377 WiFi chipset may be supported on some of the
refer
to
I/O
O
WiFi SD Command
O
WiFi SD Clock
WiFi SD Serial Data
I/O
0
WiFi SD Serial Data
I/O
1
WiFi SD Serial Data
I/O
2
WiFi SD Serial Data
I/O
3
WiFi Reset / Power
O
enable control
Wireless
O
coexistence
interface TXD
Wireless
I
coexistence
interface RXD
Page 77 of 128
Not Subject to NDA
Ref
5:
Telit_LE920A4_LE910Cx_Wi-
Function
Type
1.8V
1.8V
1.8V
1.8V
1.8V
1.8V
1.8V
1.8V
1.8V
Comments
200 MHz max.
Active Low
2021-06-29
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