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HT46R62 Datasheet(PDF) 32 Page - Holtek Semiconductor Inc

Part # HT46R62
Description  52-pin LQFP竊?6-pin SSOP
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT46R62 Datasheet(HTML) 32 Page - Holtek Semiconductor Inc

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HT46R62/HT46C62
Rev. 1.80
32
2013-10-31
位运算
提供数据存储器中单个位的运算指令是盛群单片机的特性之一。这特性对于输出端口位的设置
尤其有用,其中个别的位或端口的引脚可以使用“SET [m].i”或“CLR [m].i”指令来设定其为高位
或低位。如果没有这特性,程序设计师必须先读入输出口的 8 位数据,处理这些数据,然后再输出
正确的新数据。这种读入-修改-写出的过程现在则被位运算指令所取代。
查表运算
数据的储存通常由寄存器完成,然而当处理大量固定的数据时,它的存储量常常造成对个别存
储器的不便。为了改善此问题,盛群单片机允许在程序存储器中建立一个表格作为数据可直接存储
的区域,只需要一组简易的指令即可对数据进行查表。
其它运算
除了上述功能指令外,其它指令还包括用于省电的“HALT”指令和使程序在极端电压或电磁环
境下仍能正常工作的看门狗定时器控制指令。这些指令的使用则请查阅相关的章节。


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