Features • Compatible with MCS-51® Products • 8K Bytes of In-System Programmable (ISP) Flash Memory – Endurance: 1000 Write/Erase Cycles • 4.0V to 5.5V Operating Range • Fully Static Operation: 0 Hz to 33 MHz •

這是一本介紹8051的好書，看了這本書能對8051有所了解，本書有介紹指令、timer、interrup、uart幾乎是8051基本的功能都有說明，另外本書也有應用電路能讓讀者了解8051。-This is a 8051 briefing books, read this book will be on the 8051 understanding, The book presents instructions, timer, interrup. uart almost 8,051 basic

很全的中断手册。 INT 00 - CPU-generated - DIVIDE ERROR INT 01 - CPU-generated - SINGLE STEP (80386+) - DEBUGGING EXCEPTIONS INT 02 - external hardware - NON-MASKABLE INTERRUPT INT 03 - CPU-generated - BREAKPOINT INT 04 - CPU-generated - INTO DETECT

#include "stc15.h" #define MAIN_Fosc 24000000 //定义主时钟 typedef unsigned char u8; typedef unsigned int u16; typedef unsigned long u32; #define Timer0_Reload (MAIN_Fosc / 1000) //Timer 0 中断频率, 1000次/秒