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SN8F2280 参数 Datasheet PDF下载

SN8F2280图片预览
型号: SN8F2280
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: 163 页 / 3660 K
品牌: SONIX [ SONIX TECHNOLOGY COMPANY ]
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SN8F2280 Series  
USB 2.0 Full-Speed 8-Bit Micro-Controller  
3
RESET  
3.1 OVERVIEW  
The system would be reset in three conditions as following.  
z
z
z
z
Power on reset  
Watchdog reset  
Brown out reset  
External reset (only supports external reset pin enable situation)  
When any reset condition occurs, all system registers keep initial status, program stops and program counter is cleared.  
After reset status released, the system boots up and program starts to execute from ORG 0. The NT0, NPD flags  
indicate system reset status. The system can depend on NT0, NPD status and go to different paths by program.  
086H  
PFLAG  
Read/Write  
After reset  
Bit 7  
NT0  
R/W  
-
Bit 6  
NPD  
R/W  
-
Bit 5  
Bit 4  
Bit 3  
Bit 2  
C
R/W  
0
Bit 1  
DC  
R/W  
0
Bit 0  
Z
R/W  
0
-
-
-
-
-
-
-
-
-
Bit [7:6] NT0, NPD: Reset status flag.  
NT0  
0
0
1
1
NPD  
Condition  
Watchdog reset  
Reserved  
Power on reset and LVD reset. Power voltage is lower than LVD detecting level.  
External reset External reset pin detect low level status.  
Description  
Watchdog timer overflow.  
-
0
1
0
1
SONiX TECHNOLOGY CO., LTD  
Page 42  
Version 1.1  
 
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