XC866中文用户手册，XC866是高性能8位微控制器XC800的系列产品，基于和标准8051处理器兼容的XC800 核。-Chinese user manual XC866, XC866 is a high performance 8-bit XC800 microcontroller family of products, and standards-based 8051 processor compatible XC800 core.