基于CPLD XC95018开发的一段VHDL代码，可实现多个8051单片机互相通讯，对多单片机系统的设计很有参考价值-Based on CPLD XC95018 developed section of VHDL code, can realize more than 8051 mutual communication, single-chip microcomputer system for the design of multi-reference value is