仪表技术 Instrumentation Technology 2004年 第1卷 第4期 X25F128与89C2051的接口及编程 龙小敏,王盛安,姚小桂 (中国科学院南海海洋研究所,广东 广州510301) 摘 要 :介绍X25F128与89C2051的接口电路,并提供了对X25F128进行操作的子程序清单。 关键词 :串行快擦写存储器;单片机;接口;程序设计 An Interface between X25F128 and 89C2051 and Its Programming LONGXiao-min,WANGSheng-an,YAOXiao-gui (South China Sea Institute of Oceanology,Chinese Academy of Sciences, Guangzhou 510301,China) Abstract: This paperintroducestheinterfacing circuit between X25F128 and 89C2051,and offerslists ofthe subroutinesforthe X25F128 op-eration.The X25F128 in conjunction with 89C2051 saves the hardware reseurces,lewersthe consumption,improvesthe reliability. Keywords: serialflash memory;MCU;interface;programdesign 1 X25F128的主要特点和引脚说明 X25F128是美国Xicor公司生产的CMOS串行快擦写存储器,内部结构为16K* 8,可靠性高,每字节可写入100,000次,数据保存期100年。“单电压”读和写,工作电压有1.8V~3.……
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