基于快速二-十进制转换算法的智能水表专用控制芯片LCD接口设计  

Interface design between LCD and intelligent water meter control ASIC based on fast binary to decimal conversion algorithm

作　　者：赵峰[1] 夏银水[1] 

机构地区：[1]宁波大学电路与系统研究所,浙江宁波315211

出　　处：《浙江大学学报（理学版）》2010年第3期280-285,共6页Journal of Zhejiang University（Science Edition）

基　　金：国家自然科学基金资助项目(60676017);浙江省自然科学基金人才培养专项资助项目(R105614);宁波市自然科学基金资助项目(2006A610091)

摘　　要：针对智能水表控制芯片与LCD驱动芯片之间信号编码不一致并且转换复杂的问题,提出了一种ZY886B型液晶模块的接口电路.为提高转换速率、节省开销,设计的关键部分采用基于快速二-十进制转换算法的电路,该算法与其它二-十进制转换算法相比具有转换速率和面积上的优势.所设计LCD接口采用Verilog HDL描述,在Modelsim 6.0 SE版本上进行仿真和验证,在Design Compiler综合平台上进行优化综合.结果显示接口满足ZY886B的工作时序,最大时钟频率超过250 MHz,动态功耗小于1 mW.In order to satisfy the interface between intelligent water meters and users,this paper presented an interface circuit for LCD ZY886B,which resolves the complex coding conversion issue between intelligent water meter ICs and LCD drivers.A fast binary code（BIN） to decimal code（BCD） conversion algorithm was adopted in the key part of the interface circuit,which both improved the conversion speed and saved hardware area consumption.The design was described with Verilog-HDL.Synthesis with Design Compiler and simulation with Modelsim 6.0 SE showed that the presented interface circuit worked correctly according to ZY886B＇s timing,while the maximum frequency was over 250 MHz and the power dissipation was less than 1 mW.

关 键 词：智能水表 LCD 进制转换 ASIC 

分 类 号：TN432[电子电信—微电子学与固体电子学]