MAC/PHY（MII/RMII/GMII/RGMII）基本介绍

1 year ago

source link: https://titron.github.io/2023/01/31/MAC_PHY_MII_RMII_GMII__RGMII_intro/
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MAC/PHY（MII/RMII/GMII/RGMII）基本介绍

参考 1. 以太网详解（一）-MAC/PHY/MII/RMII/GMII/RGMII基本介绍（转） 2. MII、GMII、RMII、RGMII、SGMII、XGMII

释义

interface	name	transfer data lines	signal
MII	media independant interface	4根	TX_CLK/TX_ER/TX_EN/TXD[3:0]/ RX_CLK/RX_ER/RX_DV/RXD[3:0]/ CRS/COL/ MDC/MDIO
RMII	reduced MII	并行，2根	REF_CLK(50MHz)/ TX_EN/TXD[1:0]/ RX_EN/RXD[1:0]/ CRS_DV/ MDC/MDIO
SMII	Serial MII	串行	REF_CLK(125MHz)/ TXD/RXD/ SYNC/ MDC/MDIO
GMII	Gigabit MII	并行，8根	GTX_CLK/ TX_CLK/TX_ER/TX_EN/TX[7:0]/ RX_CLK/RX_DV/RX_ER/RX[7:0]/ CRS/COL/ MDC/MDIO
RGMII	reduced Gigabit MII	并行，4根	TX_CLK(125MHz)/TX_CTL/TXD[3:0]/ RX_CLK(125MHz)/RX_CTL/RXD[3:0]/ MDC/MDIO
SGMII	Serial Gigabit MII	串行
XGMII	X-对应罗马数字10，10GMII速