RM0090 Rev 18 1125/1749
RM0090 Ethernet (ETH): media access control (MAC) with DMA controller
1239
33.3 Ethernet pins
Table 185 shows the MAC signals and the corresponding MII/RMII signal mapping. All MAC
signals are mapped onto AF11, some signals are mapped onto different I/O pins, and
should be configured in Alternate function mode (for more details, refer to Section 8.3.2: I/O
pin multiplexer and mapping).
Table 185. Alternate function mapping
Port
AF11
ETH
PA0-WKUP ETH_MII_CRS
PA1 ETH_MII _RX_CLK / ETH_RMII _REF_CLK
PA2 ETH _MDIO
PA3 ETH _MII_COL
PA7 ETH_MII _RX_DV / ETH_RMII _CRS_DV
PB0 ETH _MII_RXD2
PB1 ETH _MII_RXD3
PB5 ETH _PPS_OUT
PB8 ETH _MII_TXD3
PB10 ETH_ MII_RX_ER
PB11 ETH _MII_TX_EN / ETH _RMII_TX_EN
PB12 ETH _MII_TXD0 / ETH _RMII_TXD0
PB13 ETH _MII_TXD1 / ETH _RMII_TXD1
PC1 ETH _MDC
PC2 ETH _MII_TXD2
PC3 ETH _MII_TX_CLK
PC4 ETH_MII_RXD0 / ETH_RMII_RXD0
PC5 ETH _MII_RXD1/ ETH _RMII_RXD1
PE2 ETH_MII_TXD3
PG8 ETH_PPS_OUT
PG11 ETH _MII_TX_EN / ETH _RMII_TX_EN
PG13 ETH _MII_TXD0 / ETH _RMII_TXD0
PG14 ETH _MII_TXD1 / ETH _RMII_TXD1
PH2 ETH _MII_CRS
PH3 ETH _MII_COL
PH6 ETH _MII_RXD2
PH7 ETH _MII_RXD3
PI10 ETH _MII_RX_ER
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