AK8963N Datasheet, PDF (26/38 Pages) Asahi Kasei Microsystems – 3-axis Electronic Compass

[AK8963]
8. Registers
8.1. Description of Registers
AK8963 has registers of 20 addresses as indicated in Table 8.1. Every address consists of 8 bits data. Data is
transferred to or received from the external CPU via the serial interface described previously.
Name
WIA
INFO
ST1
HXL
HXH
HYL
HYH
HZL
HZH
ST2
CNTL1
CNTL2
ASTC
TS1
TS2
I2CDIS
ASAX
ASAY
ASAZ
RSV
Address
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
12H
13H
READ/
WRITE
READ
READ
READ
READ
Table 8.1 Register Table
Description
Device ID
Information
Status 1
Measurement data
READ
READ/
WRITE
READ/
WRITE
READ/
WRITE
READ/
WRITE
READ/
WRITE
READ
READ
READ
READ
Status 2
Control 1
Control 2
Self-test
Test 1
Test 2
I²C disable
X-axis sensitivity adjustment value
Y-axis sensitivity adjustment value
Z-axis sensitivity adjustment value
Reserved
Bit
width
8
8
8
8
8
8
8
8
8
8
8
8
8
Explanation
Data status
X-axis data
Y-axis data
Z-axis data
Data status
Function Control
8 DO NOT ACCESS
8 DO NOT ACCESS
8
8 Fuse ROM
8 Fuse ROM
8 ^{Fuse ROM}
8 ^{DO NOT ACCESS}
Addresses 00H~0CH and 10H~12H are compliant with automatic increment function of serial interface
respectively. Values of addresses 10H~12H can be read only in Fuse ROM access mode. In other modes, read
data is not correct.
MS1356-E-02
- 26 -
2013/10