Users Manual

IO Configuration
MFX_O2 XSDN – Camera PWDN, active high
1. Available on the MB1262/CN7 connector, but not used in the MB1379 module
6.18 1 Gbps Ethernet
The STM32MP157x-EV1 board provides a 1 Gbps Ethernet feature thanks to an external physical interface
device (PHY), RTL8211EG-VB-CG. This PHY is connected to the STM32MP157xAA3 Gigabit reduced medium-
independent interface (RGMII), and is clocked from a 25 MHz Crystal (X1).
The Ethernet PHY is supplied by 3V3. It generates its own supply 1V05 and Digital/Analog 3V3.
LD1 LED is blinking to indicate the data transmission.
The Ethernet module connector MB1262/CN6 is for STMicroelectronics internal use only.
6.18.1 RGMII interface
Table 25 describes the IO configuration for the Ethernet interface.
Table 25. IO configuration for the Ethernet interface
IO Configuration
PD10 PD10 (SUB_NRST) is used as PHY_NRST active Low
PA2 PA2 is used as ETH_MDIO
PG0 PG0 is used as ETH_MDINT
PC1 PB11 is used as ETH_MDC
PA7 PA7 is used as ETH_RX_DV(PHY_AD2)
PC4 PC4 is used as ETH_RXD0
PC5 PC5 is used as ETH_RXD1
PB0 PB0 is used as ETH_RXD2
PB1 PB1 is used as ETH_RXD3
PB11 PB11 is used as ETH_TX_EN
PG13 PG13 is used as ETH_TXD0
PG14 PG14 is used as ETH_TXD1
PC2 PB11 is used as ETH_TXD2
PE2 PE2 is used as ETH_TXD3
PA1 PA1 is used as ETH_RX_CLK
PG4 PG4 is used as ETH_GTX_CLK
PG5 PG5 is used as ETH_CLK125
UM2535
1 Gbps Ethernet
UM2535 - Rev 2
page 28/59