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C8051F502-IM 参数 Datasheet PDF下载

C8051F502-IM图片预览
型号: C8051F502-IM
PDF下载: 下载PDF文件 查看货源
内容描述: 混合信号ISP功能的Flash MCU系列 [Mixed Signal ISP Flash MCU Family]
分类和应用: 微控制器和处理器外围集成电路PC时钟
文件页数/大小: 312 页 / 2813 K
品牌: SILICON [ SILICON ]
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C8051F50x-F51x  
SFR Definition 19.3. OSCICRS: Internal Oscillator Coarse Calibration  
Bit  
7
6
5
4
3
2
1
0
OSCICRS[6:0]  
Name  
Type  
Reset  
R
0
R/W  
Varies  
Varies  
Varies  
Varies  
Varies  
Varies  
Varies  
SFR Address = 0xA2; SFR Page = 0x0F;  
Bit  
Name  
Function  
7
Unused  
Read = 0; Write = Don’t Care  
6:0 OSCICRS[6:0] Internal Oscillator Coarse Calibration Bits.  
These bits determine the internal oscillator period. When set to 0000000b, the  
internal oscillator operates at its slowest setting. When set to 1111111b, the inter-  
nal oscillator operates at its fastest setting. The reset value is factory calibrated  
to generate an internal oscillator frequency of 24 MHz.  
SFR Definition 19.4. OSCIFIN: Internal Oscillator Fine Calibration  
Bit  
7
6
5
4
3
2
1
0
OSCIFIN[5:0]  
R/W  
R
0
R
0
Type  
Varies  
Varies  
Varies  
Varies  
Varies  
Varies  
Reset  
SFR Address = 0x9E; SFR Page = 0x0F;  
Bit  
Name  
Function  
7:6  
Unused  
Read = 00b; Write = Don’t Care  
5:0 OSCIFIN[5:0] Internal Oscillator Fine Calibration Bits.  
These bits are fine adjustment for the internal oscillator period. The reset value is  
factory calibrated to generate an internal oscillator frequency of 24 MHz.  
Rev. 1.1  
169