AK7401 Datasheet, PDF (16/29 Pages) Asahi Kasei Microsystems – Rotary Position Sensor IC

[AK7401]
● Register description
1) R_ANG (Addr. 0x00)
DATA[11:0]
11
10
9
8
7
6
5
4
3
2
1
0
R_ANG[11:0]
These registers contain the 12-bit angle data. In Normal Mode, R_ANG can be read via ReadAngle
operation code.
2) R_MFDI (Addr. 0x01)
DATA[11:0]
11
10
9
8
7
6
5
4
3
2
1
0
-
R_MFDI[7:0]
These registers contain the 8-bit magnetic flux density data. The data resolution is about 1mT.
In User Mode, the magnetic flux density can be detected from these registers. When fabricating a rotary
position sensor module that uses a magnet and the AK7401, it is able to check the magnetic flux density
whether targeted strength is applied or not.
3) R_CHMD (Addr. 0x02)
DATA[11:0]
11
10
9
8
7
6
5
4
3
2
1
0
R_CHMD[11:0]
These registers contain the 12-bit mode indication data. In Normal Mode, the mode indication data can
be stored in R_CHMD via ChangeMode operation code.
Operating
Mode
Normal
Mode
User Mode
R_CHMD[11:0]
0x000
0x50F
Default
●
014002685-E-01
- 16 -
2015/07