User's Manual

LE920A4 HW User Guide Module Connections
Doc#: 1VV0301261 Pin-out
Rev. 4.3 Page 24 of 123 2017-12-07
PAD Signal I/O Function Type Comment
K19 SPI_MOSI O
SPI data Master Output Slave
Input
1.8V
N18 SPI_CS O SPI chip select output 1.8V
SD/MMC Card Interface
AH17
SD/MMC_CM
D
I/O SD command 1.8/2.95V
AD17 SD/MMC_CLK O SD card clock 1.8/2.95V
Y17
SD/MMC_DAT
A0
I/O SD Serial Data 0 1.8/2.95V
AF17
SD/MMC_DAT
A1
I/O SD Serial Data 1 1.8/2.95V
AB17
SD/MMC_DAT
A2
I/O SD Serial Data 2 1.8/2.95V
W17
SD/MMC_DAT
A3
I/O SD Serial Data 3 1.8/2.95V
U17 SD/MMC_CD I SD card detect input 1.8V Active Low
S17 VMMC -
Power supply for MMC card pull-
up resistors
1.8/2.95V
WiFi (SDIO) Interface
AB3
WiFi_SD_CM
D
I/O WiFi SD command 1.8V
AM3 WiFi_SD_CLK O WiFi SD clock 1.8V
AD3
WiFi_SD_DAT
A0
I/O WiFi SD Serial Data 0 1.8V
AF3
WiFi_SD_DAT
A1
I/O WiFi SD Serial Data 1 1.8V
AH3
WiFi_SD_DAT
A2
I/O WiFi SD Serial Data 2 1.8V
AK3
WiFi_SD_DAT
A3
I/O WiFi SD Serial Data 3 1.8V
Y3 WiFi_SDRST O WiFi Reset / Power enable control 1.8V Active Low
AA4
WLAN_SLEEP
_CLK
O WiFi Sleep clock output 1.8V
X4 RFCLK2_QCA O WiFi low-noise RF clock output 1.8V