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89C51RC2-UL 参数 Datasheet PDF下载

89C51RC2-UL图片预览
型号: 89C51RC2-UL
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器,带有16K / 32K字节的闪存 [8-bit Microcontroller with 16K/ 32K Bytes Flash]
分类和应用: 闪存微控制器
文件页数/大小: 127 页 / 1478 K
品牌: ATMEL [ ATMEL ]
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AT89C51RB2/RC2  
Table 16. CKCON1 Register  
CKCON1 - Clock Control Register (AFh)  
7
-
6
-
5
-
4
-
3
-
2
-
1
-
0
SPIX2  
Bit  
Bit  
Number  
Mnemonic Description  
7
6
5
4
3
2
1
-
-
-
-
-
-
-
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
SPI (This control bit is validated when the CPU clock X2 is set; when X2 is low,  
this bit has no effect).  
Clear to select 6 clock periods per peripheral clock cycle.  
0
SPIX2  
Set to select 12 clock periods per peripheral clock cycle.  
Reset Value = XXXX XXX0b  
Not bit addressable  
19  
4180E–8051–10/06  
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