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SN8F2250B 参数 Datasheet PDF下载

SN8F2250B图片预览
型号: SN8F2250B
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器 [8-Bit Micro-Controller]
分类和应用: 微控制器
文件页数/大小: 133 页 / 1554 K
品牌: SONIX [ SONIX TECHNOLOGY COMPANY ]
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SN8F2250B Series  
USB 2.0 Full-Speed 8-Bit Micro-Controller  
2.1.1.1 RESET VECTOR (0000H)  
A one-word vector address area is used to execute system reset.  
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Power On Reset (NT0=1, NPD=0).  
Watchdog Reset (NT0=0, NPD=0).  
External Reset (NT0=1, NPD=1).  
After power on reset, external reset or watchdog timer overflow reset, then the chip will restart the program from  
address 0000h and all system registers will be set as default values. It is easy to know reset status from NT0, NPD  
flags of PFLAG register. The following example shows the way to define the reset vector in the program memory.  
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Example: Defining Reset Vector  
ORG  
JMP  
0
; 0000H  
START  
; Jump to user program address.  
ORG  
10H  
START:  
; 0010H, The head of user program.  
; User program  
ENDP  
; End of program  
SONiX TECHNOLOGY CO., LTD  
Page 14  
Version 1.1  
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