Data Sheet

[AK9753]
017005237-E-00 2017/04
- 39 -
13). ECNTL1: Mode setting/ Digital Filter Cutoff Frequency (Fc) setting (Read / Write registers)
Address
Name
D7
D6
D5
D4
D3
D2
D1
D0
1CH
ECNTL1
EEPMODE
EFC_2
EFC_1
EFC_0
EMODE_2
EMODE_1
EMODE_0
Reset
1
0
0
0
0
0
0
0
EMODE [2:0]: Mode setting
“000”: Stand-by Mode
“001”: EEPROM Access Mode (EEPMODE bit should be set to “1” simultaneously)
“010”: Shingle Shot Mode
“011”: Be prohibited
“100”: Continuous Mode 0 (Normal operation)
“101”: Continuous Mode 1 (Intermittent operation => Measurement time: Wait time = 1:1)
“110”: Continuous Mode 2 (Intermittent operation => Measurement time: Wait time = 1:3)
“111”: Continuous Mode 3 (Intermittent operation => Measurement time: Wait time = 1:7)
EFC [2:0]: Digital Filter Cutoff Frequency (Fc) setting
“000”: Fc = 0.3Hz
“001”: Fc = 0.6Hz
“010”: Fc = 1.1Hz
“011”: Fc = 2.2Hz
“100”: Fc = 4.4Hz
“101”: Fc = 8.8Hz
“11x”: Be prohibited
The digital filter is “sinc function” type. The Fc is defined as the frequency at which Gain is -3dB.
EEPMODE Setting
“0”: Normal Mode
“1”: EEPROM Access Mode (EMODE [2:0] bits should be set to “001” simultaneously)
14). CNTL2: Soft Reset (Read / Write Registers)
Address
Name
D7
D6
D5
D4
D3
D2
D1
D0
1DH
CNTL2
SRST
Reset
1
1
1
1
1
1
1
0
SRST: Soft Reset
“0”: Normal State
“1”: Reset
All registers are reset by setting SRST bit to “1”. SRST bit automatically returns to “0” after reset is
activated.