User Manual

MPU-9250 Register Map and Descriptions
Document Number: RM-MPU-9250A-00
Revision: 1.4
Release Date: 9/9/2013
When each mode is set, AK8963 transits to set mode.
When CNTL register is accessed to be written, registers from 02H to 09H are initialized.
5.9 CNTL2: Control 2
Addr
Register name
D7
D6
D5
D4
D3
D2
D1
D0
Read-only register
0BH CNTL2 0 0 0 0 0 0 0
SRST
Reset
0
0
0
0
0
0
0
0
SRST: Soft reset
"0": Normal
"1": Reset
When “1” is set, all registers are initialized. After reset, SRST bit turns to “0” automatically.
5.10 ASTC: Self-Test Control
Addr
Register name
D7
D6
D5
D4
D3
D2
D1
D0
Write/read register
0CH ASTC - SELF - - - - - -
Reset
0
0
0
0
0
0
0
0
SELF: Self-test control
"0": Normal
"1": Generate magnetic field for self-test
Do not write “1” to any bit other than SELF bit in ASTC register. If “1” is written to any bit other than SELF
bit, normal measurement cannot be done.
5.11 TS1, TS2: Test 1, 2
Addr
Register name
D7
D6
D5
D4
D3
D2
D1
D0
Write/read register
0DH
TS1
-
-
-
-
-
-
-
-
0EH
TS2
-
-
-
-
-
-
-
-
Reset
0
0
0
0
0
0
0
0
TS1 and TS2 registers are test registers for shipment test. Do not use these registers.
5.12 I2CDIS: I
2
C Disable
Addr
Register name
D7
D6
D5
D4
D3
D2
D1
D0
Write/read register
0FH
I2CDIS
I2CDIS7
I2CDIS6
I2CDIS5
I2CDIS4
I2CDIS3
I2CDIS2
I2CDIS1
I2CDIS0
Reset
0
0
0
0
0
0
0
0
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