Telit Wireless Solutions LE910C series - Wi-Fi SDIO Interface Details; Module Hardware Interface Summary

LE910Cx-WE866Cx LTE Bundling User Guide
1VV0301578 Rev. 9 Page 15 of 56 2020-05-26
3.3. Wi-Fi Interface
The Wi-Fi Interface is part of the Baseband System of the cellular module. This section
describes the method to connect the Wi-Fi interface to WE866Cx module. The Wi-Fi
Interface is a dedicated SDIO interface that is used as a communication channel to the
Modem chipset.
The tables below describe the Wi-Fi interface for the various cellular modules.
Pin
Signal
I/O
Function
Type
Comment
L12
WIFI_SDRST_TGPIO13
O
WLAN RESET
CMOS 1.8V
N13
WIFI_SDCMD_TGPIO14
I/O
SDIO CMD
CMOS 1.8V
J13
WIFI_SD0_TGPIO15
I/O
SDIO DATA 0
CMOS 1.8V
M13
WIFI_SD1_TGPIO16
I/O
SDIO DATA 1
CMOS 1.8V
K13
WIFI_SD2_TGPIO17
I/O
SDIO DATA 2
CMOS 1.8V
H13
WIFI_SD3_TGPIO18
I/O
SDIO DATA 3
CMOS 1.8V
L13
WIFI_SDCLK_TGPIO19
O
SDIO CLOCK
CMOS 1.8V
3.4. Hardware Interface
• Single antenna port
• 4-bit SDIO3.0 for Wi-Fi host interface (up to 200Mhz)
• 4 pin UART for BT interface
• 32KHz input for Wi-Fi sleep
• LTE Coexistence interface (2 pin WCI UART)
• Control pins (Enable input, WoW Output)
• Debug UART (TX only)