MCS-51系统外部中断响应频率的测试与研究  

The Measure and Research of MCS-51 System's External Interrupt Response Frequency

作　　者：陈晓风[1] 

机构地区：[1]福建师范大学计算机科学系,福建福州350007

出　　处：《福建师范大学学报（自然科学版）》2002年第3期25-27,37,共4页Journal of Fujian Normal University：Natural Science Edition

摘　　要：分别使用 6 MHz和 1 2 MHz晶振频率 ,测试 MCS-5 1系统的外部中断响应频率 .实验结果表明 :由于中断服务时间和中断响应延迟的存在 ,MCS-5 1系统的外部中断响应频率是受到限制的 ;最高可测试的外部中断响应频率大约是 6 5 k Hz.本实验为合理和有效应用 MCS-5 1系统的中断控制资源提供了可靠的实验数据 .Using 6 MHz or 12 MHz quartz oscillator respectively, to measure the external interrupts response frequency of mcs-51 system. The experiment results showed that due to exist the interrupt service time and interrupt response latency, the external interrupt response frequency of mcs-51 system is limited; the maximum measurable external interrupt response frequency is about 65 kHz. The measured results provide reliable experiment data for to apply suitably and efficiently the interrupt control resource within mcs-51 system.

关 键 词：MCS-51系统 外部中断响应频率 中断服务时间 中断响应延迟 晶振频率 中断控制 单片机系统 频率测试 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]