说明：  VPC3+C数据手册，里面有中文附注 VPC3+C是带处理器接口的PROFIBUS DP从站通讯芯片。它在通讯方面和功耗方面是VPC3+B的增强版。
(VPC3+ C data sheet, which a Chinese note VPC3+ C is the processor interface with PROFIBUS DP Slave Communication chips. It is in the communications and power consumption is an enhanced version of VPC3+ B.)