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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  
11.3 PROGRAMMING/ERASE ADDRESS REGISTER  
0BBH  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
PEROML  
Read/Write  
After reset  
PEROML7 PEROML6 PEROML5 PEROML4 PEROML3 PEROML2 PEROML1 PEROML0  
R/W  
0
R/W  
0
R/W  
0
R/W  
0
R/W  
0
R/W  
0
R/W  
0
R/W  
0
Bit [7:0] PEROML[7:0]: Define the target starting low byte address [7:0] of Flash memory (10K x 16) which is going  
to be programmed or erased.  
0BCH  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
PEROMH  
Read/Write  
After reset  
PEROMH7 PEROMH6 PEROMH5 PEROMH4 PEROMH3 PEROMH2 PEROMH1 PEROMH0  
R/W  
0
R/W  
0
R/W  
0
R/W  
0
R/W  
0
R/W  
0
R/W  
0
R/W  
0
Bit [7:0] PEROMH [7:0]: Define the target starting high address [15:8] of Flash memory (10K x 16) which is going to  
be programmed or erased.  
The valid PAGE ERASE starting addresses are 0x0, 0x80, 0x100, 0x180, 0x 200, 0x280, 0x300, 0x380 … 0x2780.  
The page erase function is used to erase a page of 128 contiguous words in Flash ROM.  
Note: If the code option SECURITY1 = 0 (SECURITY1 disable), the code option address 0x27FC ~ 0x27FF will  
NOT be protected by hardware. And the code option can be “erase and program” by the  
in-system-programming function. To avoid the error occur, when SECUIRTY1 = 0 (SECURITY1 disable),  
please DO NOT set the PAGE ERASE starting address at 0x2780.  
The valid PAGE PROGRAM starting addresses are 0x0, 0x20, 0x40, 0x60, 0x80, 0xA0, 0xC0, 0xE0 … 0x27E0. The  
page program function is used to program a page of 32 contiguous words in Flash ROM.  
10Kx16 FLASH  
User reset vector  
Jump to user start address  
0000H  
Reset vector  
0001H  
.
.
General purpose area  
Interrupt vector  
0007H  
0008H  
0009H  
.
User interrupt vector  
User program  
.
000FH  
0010H  
0011H  
.
General purpose area  
.
.
2000H  
.
27FBH  
27FCH  
27FDH  
27FEH  
27FFH  
End of user program  
SECURITY1 protect &  
Reserved (Code option)  
Flash ROM mapping  
Note: 1. If the code option SECURITY1 = 1 (SECURITY1 enable), the FLASH ROM ADDRESS = 0x2000 ~  
0x27FF will not allow to do the “page erase and page program”.  
2. If the code option SECURITY1 = 0 (SECURITY1 disable), the code option address 0x27FC ~ 0x27FF  
will not be protected by hardware. And the code option can be “erase and program” by the  
in-system-programming function.  
SONiX TECHNOLOGY CO., LTD  
Page 116  
Version 1.1  
 
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