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AK8975 参数 Datasheet PDF下载

AK8975图片预览
型号: AK8975
PDF下载: 下载PDF文件 查看货源
内容描述: 3轴电子罗盘 [3-axis Electronic Compass]
分类和应用: 电子
文件页数/大小: 34 页 / 634 K
品牌: AKM [ ASAHI KASEI MICROSYSTEMS ]
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[AK8975/C]  
8.3.5. ST2: Status 2  
Register  
Addr  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
name  
Read-only register  
09H  
ST2  
0
0
0
0
0
0
0
0
HOFL  
0
DERR  
0
0
0
0
0
Reset  
DERR: Data Error  
"0":  
"1":  
Normal  
Data read error occurred  
When data reading is started out of data readable period, the read data are not correct. In this case, data  
read error occurs and DERR bit turns to 1. When ST2 register is read, it returns to 0.  
HOFL: Magnetic sensor overflow  
"0":  
"1":  
Normal  
Magnetic sensor overflow occurred  
In single measurement mode and self-test mode, magnetic sensor may overflow even though  
measurement data regiseter is not saturated. In this case, measurement data is not correct and HOFL bit  
turns to “1”. When next measurement stars, it returns to “0”. Refer to 6.4.2.3 for detailed information.  
8.3.6. CNTL: Control  
Addr Register name  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Read-only register  
0AH  
CNTL  
Reset  
0
0
0
0
0
0
0
0
MODE3 MODE2 MODE1 MODE0  
0
0
0
0
MODE[3:0]: Operation mode setting  
"0000": Power-down mode  
"0001": Single measurement mode  
"1000": Self-test mode  
"1111": Fuse ROM access mode  
Other code settings are prohibited  
When each mode is set, AK8975/C transits to set mode. Refer to 6.3 for detailed information.  
When CNTL register is accessed to be written, registers from 02H to 09H are initialized.  
MS1187-E-02  
- 26 -  
2010/05  
 
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