Control method and device of Ethernet physical layer chip

The invention discloses a control method and device for an Ethernet physical layer chip, and belongs to the field of industrial automation control. The method comprises the steps that a field programmable gate array (FPGA) receives address information and target command information sent by a processor; the FPGA determines a target physical layer chip in a plurality of physical layer chips to be controlled according to the address information; the FPGA determines a target operation executed by the target physical layer chip according to the target command information; and the FPGA controls the target physical layer chip according to the target operation. 本申请公开了一种以太网物理层芯片的控制方法及装置，属于工业自动化控制领域。所述方法包括：现场可编程门阵列FPGA接收处理器发送的地址信息和目标命令信息；所述FPGA根据所述地址信息，确定待控制的多个物理层芯片中的目标物理层芯片；所述FPGA根据所述目标命令信息，确定所述目标物理层芯片所执行的目标操作；所述FPGA按照所述目标操作，对所述目标物理层芯片进行控制。