AK09915D Datasheet, PDF (35/43 Pages) Asahi Kasei Microsystems – 3-axis Electronic Compass

[AK09915D]
11.3.9.CNTL2: Control 2
Addr.
Register
name
D7
31h CNTL2 FIFO
Reset
0
D6
D5
D4
D3
D2
D1
D0
Read/Write register
SDR
0 MODE4 MODE3 MODE2 MODE1 MODE0
0
0
0
0
0
0
0
MODE[4:0] bits: Operation mode setting
“00000”: Power-down mode
“00001”: Single measurement mode
“00010”: Continuous measurement mode 1
“00100”: Continuous measurement mode 2
“00110”: Continuous measurement mode 3
“01000”: Continuous measurement mode 4
“01010”: Continuous measurement mode 5
“01100”: Continuous measurement mode 6
“10000”: Self-test mode
When each mode is set, AK09915D transits to the set mode. Refer to 9.3 for detailed information. If other
value is set, AK09915D transits to power-down mode automatically.
SDR bit: Sensor drive setting
“0”: Low power drive
“1”: Low noise drive
Default SDR bit is Low power drive (SDR bit = “0”). By writing “1” to SDR bit, AK09915D is switched
from Low power drive to Low noise drive.
FIFO bit: FIFO setting
“0”: disable
“1”: enable
By writing “1” to FIFO bit, FIFO function is enabled. By writing “0”, FIFO function is disabled and the
buffer is cleared at the same time. FIFO function is available only in Continuous measurement mode. It is
prohibited to enable it other than Continuous measurement mode
11.3.10. CNTL3: Control 3
Addr.
Register
name
D7
D6
D5
D4
D3
D2
D1
D0
Read/Write register
32h CNTL3
0
0
0
0
0
0
0
SRST
Reset
0
0
0
0
0
0
0
0
SRST bit: Soft reset
“0”: Normal
“1”: Reset
When “1” is set, all registers are initialized. After reset, SRST bit turns to “0” automatically.
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2016/7