Telit Wireless Solutions LE910C1-AP Hardware Design Guide

LE910Cx Hardware Design Guide
1VV0301298 Rev.40 Page 80 of 149 2023-03-16
Not Subject to NDA
Note:
Qualcomm QCA9377 WiFi chipset may be supported on some of the
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, refer to Ref 5: Telit LE920A4 LE910Cx WiFi Interface
Application Note r1.
PAD Signal I/O Function Type Comments
N13 WIFI_SD_CMD O WiFi SD Command 1.8V
L13 WIFI_SD_CLK O WiFi SD Clock 1.8V 200 MHz max.
J13 WIFI_SD_DATA0 I/O
WiFi SD Serial Data
0
1.8V
M13 WIFI_SD_DATA1 I/O
WiFi SD Serial Data
1
1.8V
K13 WIFI_SD_DATA2 I/O
WiFi SD Serial Data
2
1.8V
H13 WIFI_SD_DATA3 I/O
WiFi SD Serial Data
3
1.8V
L12 WIFI_SDRST O
WiFi Reset / Power
enable control
1.8V Active Low
M8 WCI_TX O
Wireless
coexistence
interface TXD
1.8V
M9 WCI_RX I
Wireless
coexistence
interface RXD
1.8V
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:

Telit Wireless Solutions LE910C1-AP Specifications

General

Brand	Telit Wireless Solutions
Model	LE910C1-AP
Category	Control Unit
Language	English