AK8975 Datasheet, PDF (23/34 Pages) Asahi Kasei Microsystems – 3-axis Electronic Compass

[AK8975/C]
8.2. Register Map

Addr
Register
Name
D7
Read-only Register
00H WIA
0
01H INFO INFO7
02H ST1
0
03H HXL
HX7
04H HXH HX15
05H HYL
HY7
06H HYH HY15
07H HZL
HZ7
08H HZH HZ15
09H ST2
0
Write/read Register
0AH CNTL
0
0BH RSV
-
0CH ASTC
-
0DH TS1
-
0EH TS2
-
0FH I2CDIS
-
Read-only Register
10H ASAX COEFX7
11H ASAY COEFY7
12H ASAZ COEFZ7
D6
D5
D4
1
INFO6
0
HX6
HX14
HY6
HY14
HZ6
HZ14
0
0
INFO5
0
HX5
HX13
HY5
HY13
HZ5
HZ13
0
0
INFO4
0
HX4
HX12
HY4
HY12
HZ4
HZ12
0
0
0
0
-
-
-
SELF
-
-
-
-
-
-
-
-
-
-
-
COEFX6 COEFX5 COEFX4
COEFY6 COEFY5 COEFY4
COEFZ6 COEFZ5 COEFZ4
Table 8.2 Register Map
D3
1
INFO3
0
HX3
HX11
HY3
HY11
HZ3
HZ11
HOFL
MODE3
-
-
-
-
-
COEFX3
COEFY3
COEFZ3
D2
D1
D0
0
INFO2
0
HX2
HX10
HY2
HY10
HZ2
HZ10
DERR
0
INFO1
0
HX1
HX9
HY1
HY9
HZ1
HZ9
0
0
INFO0
DRDY
HX0
HX8
HY0
HY8
HZ0
HZ8
0
MODE2
-
-
-
-
-
MODE1 MODE0
-
-
-
-
-
-
-
-
- I2CDIS
COEFX2 COEFX1 COEFX0
COEFY2 COEFY1 COEFY0
COEFZ2 COEFZ1 COEFZ0
When VDD is turned ON, POR function works and all registers of AK8975/C are initialized regardless of
VID status. To write data to or to read data from register, VID must be ON.
TS1 and TS2 are test registers for shipment test. Do not use these registers.
RSV is reserved register. Do not use this register.
MS1187-E-02
- 23 -
2010/05