User's Guide

LE920A4 HW User Guide Module Connections
Doc#: 1VV0301261 Pin-out
Rev. 4.7.1 Page 27 of 124 2019-11-21
PAD Signal I/O Function Type Comment
GPS Section
S1 ANT_GPS I GPS antenna (50 Ohm) RF
V2 GPS_LNA_EN O Enables the external regulator for
GPS LNA
1.8V
W3 GPS_SYNC O GPS sync signal for Dead
Reckoning
1.8V
Miscellaneous Functions
AN8 RESET_N I Reset input Active low
AS1 ON_OFF_N I Power ON / Power OFF input Active low
AN12 SHDN_N I Unconditional Shutdown input Active low
P17 VAUX/PWRM
ON
O Supply output for external
accessories / Power ON monitor
1.8V
D5 ADC_IN1 AI Analog/Digital Converter Input 1 Analog
E6 ADC_IN2 AI Analog/Digital Converter Input 2 Analog
F7 ADC_IN3 AI Analog/Digital Converter Input 3 Analog
AU3 STAT_LED O Status Indicator LED 1.8V
AN10 SW_RDY O Indicates that the boot sequence
has completed successfully
1.8V
SGMII Interface
ZZ11 SGMII_RX_P AI SGMII receive - plus PHY
ZZ13 SGMII_RX_M AI SGMII receive - minus PHY
ZZ15 SGMII_TX_P AO SGMII transmit - plus PHY
ZZ17 SGMII_TX_M AO SGMII transmit - minus PHY
Ethernet PHY Control Interface
G14 MAC_MDC O MAC to PHY Clock 2.85V
G12 MAC_MDIO I/O MAC to PHY Data 2.85V
G8 ETH_RST_N O Ethernet PHY Reset 2.85V
G10 ETH_INT_N I Ethernet PHY Interrupt 1.8V