[AK09915]
When FIFO is enabled (FIFO bit = “1”);
If the number of stored data set is equal to or more than the number set to WM[4:0] bits, DRDY bit turns
to “1”. If the number of stored data set is less than the number set to WM[4:0] bits, DRDY bit turns to
“0”.
DOR bit: Data Overrun
“0”: Normal
“1”: Data overrun
When FIFO is disabled (FIFO bit = “0”);
DOR bit turns to “1” when data has been skipped in Continuous measurement mode 1, 2, 3, 4, 5 or 6. It
returns to “0” when any one of ST2 register or measurement data register (HXL to TMPS) is read.
When FIFO is enabled (FIFO bit = “1”);
If a set of new data is measured when the buffer is full, DOR bit turns to “1”. If at least one data set is read
from the buffer, DOR bit turns to “0”.
HSM bit: I2C Hs-mode
“0”: Standard/Fast mode
“1”: Hs-mode
HSM bit turns to “1” when I2C bus interface is changed from Standard or Fast mode to High-speed mode
(Hs-mode).
11.3.5.HXL to HZH: Measurement magnetic data
Register
name
Addr.
D7
D6
D5
D4
D3
D2
D1
D0
Read-only register
11h
12h
13h
14h
15h
16h
HXL
HXH
HYL
HYH
HZL
HZH
HX7
HX15
HY7
HY15
HZ7
HZ15
0
HX6
HX14
HY6
HY14
HZ6
HZ14
0
HX5
HX13
HY5
HY13
HZ5
HZ13
0
HX4
HX3
HX11
HY3
HY11
HZ3
HZ11
0
HX2
HX10
HY2
HY10
HZ2
HZ10
0
HX1
HX9
HY1
HY9
HZ1
HZ9
0
HX0
HX8
HY0
HY8
HZ0
HZ8
0
HX12
HY4
HY12
HZ4
HZ12
0
Reset
Measurement data of magnetic sensor X-axis/Y-axis/Z-axis
HXL[7:0] bits: X-axis measurement data lower 8-bit
HXH[15:8] bits: X-axis measurement data higher 8-bit
HYL[7:0] bits: Y-axis measurement data lower 8-bit
HYH[15:8] bits: Y-axis measurement data higher 8-bit
HZL[7:0] bits: Z-axis measurement data lower 8-bit
HZH[15:8] bits: Z-axis measurement data higher 8-bit
015006484-E-02
2016/7
- 31 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
