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SH79F166AP044PR Datasheet(PDF) 23 Page - List of Unclassifed Manufacturers

Part # SH79F166AP044PR
Description  Enhanced 8051 microcontroller with 10-bit ADC
PDF  113 Pages
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Manufacturer  ETC1 [List of Unclassifed Manufacturers]
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SH79F166AP044PR Datasheet(HTML) 23 Page - List of Unclassifed Manufacturers

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SH79F166A
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7.3.2 ICP模式下的Flash操作
ICP模式为通过Flash编程器对MCU进行编程,可以在MCU焊在用户板上以后编程。ICP模式下,用户系统必须关机后Flash
编程器才能通过ICP编程接口刷新Flash存储器。ICP编程接口包括6个引脚(VDD,GND,TCK,TDI,TMS,TDO)。
编程器使用4个JTAG引脚(TDO,TDI,TCK,TMS)进入编程模式。只有将特定波形输入4个引脚后,CPU才能进入编程
模式。如需详细说明请参考Flash编程器用户指南。
在ICP模式中,通过6线接口编程器能完成所有Flash操作。因为编程信号非常敏感,所以使用编程器编程时用户需要先用6
个跳线将芯片的编程引脚(VDD,GND,TCK,TDI,TMS,TDO)从应用电路中分离出来,如下图所示。
MCU
TCK
TDI
TDO
GND
To Application
Circuit
Jumper
Flash
Programmer
VDD
TMS
当采用ICP模式进行操作时,建议按照如下步骤进行操作:
(1) 在开始编程前断开跳线(jumper),从应用电路中分离编程引脚;
(2) 将芯片编程引脚连接至编程器编程接口,开始编程;
(3) 编程结束后断开编程器接口,连接跳线恢复应用电路。



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