AK09912 Datasheet, PDF (32/42 Pages) HuaXinAn Electronics CO.,LTD – 3-axis Electronic Compass

8.3.4. HXL to HZH: Measurement Data
[AK09912]
Addr.
Register
name
D7
D6
D5
D4
D3
D2
D1
D0
Read-only register
11H
HXL
HX7 HX6 HX5 HX4 HX3 HX2 HX1 HX0
12H
HXH
HX15 HX14 HX13 HX12 HX11 HX10 HX9 HX8
13H
HYL
HY7 HY6 HY5 HY4 HY3 HY2 HY1 HY0
14H
HYH
HY15 HY14 HY13 HY12 HY11 HY10 HY9 HY8
15H
HZL
HZ7 HZ6 HZ5 HZ4 HZ3 HZ2 HZ1 HZ0
16H
HZH
HZ15 HZ14 HZ13 HZ12 HZ11 HZ10 HZ9 HZ8
Reset
0
0
0
0
0
0
0
0
Measurement data of magnetic sensor X-axis/Y-axis/Z-axis
HXL[7:0]: X-axis measurement data lower 8-bit
HXH[15:8]: X-axis measurement data higher 8-bit
HYL[7:0]: Y-axis measurement data lower 8-bit
HYH[15:8]: Y-axis measurement data higher 8-bit
HZL[7:0]: Z-axis measurement data lower 8-bit
HZH[15:8]: Z-axis measurement data higher 8-bit
Measurement data is stored in two’s complement and Little Endian format. Measurement range of each axis is -32752 to
32752 in 16-bit output.
Table 8.3 Measurement magnetic data format
Measurement data (each axis) [15:0]
Two’s complement
Hex
Decimal
0111 1111 1111 0000
7FF0
32752
|
|
|
0000 0000 0000 0001
0001
1
0000 0000 0000 0000
0000
0
1111 1111 1111 1111
FFFF
-1
|
|
|
1000 0000 0000 1000
8010
-32752
Magnetic flux
density [µＴ]
4912(max.)
|
0.15
0
-0.15
|
-4912(min.)
MS1547-E-02
- 32 -
2014/7