单片机读写MII寄存器驱动，包括初始化，单字符的读写，定长度字符的读写。-SCM reader MII register drives, including initialization, single-character reader, determining the length of written characters.

单片机读写MII寄存器驱动，包括初始化，单字符的读写，定长度字符的读写。-SCM reader MII register drives, including initialization, single-character reader, determining the length of written characters.