AK09915 Datasheet, PDF (35/42 Pages) Asahi Kasei Microsystems – 3-axis Electronic Compass

[AK09915]
11.3.11. TS1, TS2, TS3: Test
Addr.
Register
name
D7
D6
D5
D4
D3
D2
D1
D0
Read/Write register
33h
TS1
-
-
-
-
-
-
-
-
34h
TS2
-
-
-
-
-
-
-
-
35h
TS3
-
-
-
-
-
-
-
-
Reset
0
0
0
0
0
0
0
0
TS1, TS2 and TS3 registers are AKM internal test registers. Do not access these registers.
11.3.12. I2CDIS: I²C Disable
Addr.
Register
name
D7
D6
D5
D4
D3
D2
D1
D0
Read/Write register
36h I2CDIS I2CDIS7 I2CDIS6 I2CDIS5 I2CDIS4 I2CDIS3 I2CDIS2 I2CDIS1 I2CDIS0
Reset
0
0
0
0
0
0
0
0
This register disables I²C bus interface. I²C bus interface is enabled in default. To disable I²C bus interface,
write “00011011” to I2CDIS[7:0] bits. Then I²C bus interface is disabled.
Once I²C bus interface is disabled, it is impossible to write other value to I2CDIS register. To enable I²C bus
interface, reset AK09915 or input start condition 8 times continuously.
11.3.13. TS4: Test
Addr.
Register
name
D7
D6
D5
D4
D3
D2
D1
D0
Read/Write register
37h
TS4
-
-
-
-
-
-
-
-
Reset
0
0
0
0
0
0
0
0
TS4 register is test register for shipment test. Do not access this registers.
11.3.14. ASAX,ASAY,ASAZ: Dummy
Addr.
Register
name
D7
D6
D5
D4
D3
D2
D1
D0
Read-only register
60h ASAX
1
0
0
0
0
0
0
0
61h ASAY
1
0
0
0
0
0
0
0
62h ASAZ
1
0
0
0
0
0
0
0
Reset
1
0
0
0
0
0
0
0
ASAX, ASAY and ASAZ registers are dummy registers for ensuring the compatibility with other AKM
compass.
These registers are fixed value (80h).
015006484-E-02
- 35 -
2016/7