我们产品应用场景为: 无上级CPU,独立PHY器件需要实现SGMII转COPPER功能(SGMII链路由板外接口引入)。
需要确认的疑问是:DP83867E的SGMII转COPPER接口,无上级CPU通过MDIO接口配置时,复位取消后能否只通过管脚上下拉(Strap Configuration)而正常工作?
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可以通过strapping 引脚来配置,还可以通过寄存器 0x0010 bit11 SGMII_EN=1 将其使能,也是可以的。