AK9753 Datasheet, PDF (35/50 Pages) Asahi Kasei Microsystems – IR Sensor IC with I2C I/F

[AK9753]
8). TMPL, TMPH: Measurement Data of the Integrated temperature Sensor (Read / Write Registers)
Address Name D7
D6
D5
D4
D3
D2
D1
D0
0EH
TMPL ^{TMPL_7 TMPL_6 TMPL_5 TMPL_4 TMPL_3 TMPL_2 TMPL_1 TMPL_0}
0FH
TMPH ^{TMPH_15 TMPH_14 TMPH_13 TMPH_12 TMPH_11 TMPH_10 TMPH_9 TMPH_8}
Reset
0
0
0
0
0
0
0
0
Note:
* 15. TMPL_0 bit to TMPL_5 bit are fixed to “0”.
Measurement Data of the Integrated Temperature Sensor
TMPL [7:0]: Least significant 8-bits in output data
TMPH [15:8]: Most significant 8-bits in output data
16-bit data is stored in two’s compliment format.
Table 14.3. Measurement Data of the Integrated Temperature Sensor
Measurement Data of the Integrated Temperature Sensor [15:0]
Two’s Complement
Hex
Decimal
Temperature
Unit
0100 0011 1000 0000
4380
17792
60
⁞
⁞
⁞
⁞
0000 0001 0000 0000
0100
256
26.75+0.5
⁞
⁞
⁞
⁞
0000 0000 0100 0000
0040
64
26.75+0.125
0000 0000 0000 0000
0000
0
26.75
ºC
1111 1111 1100 0000
FFC0
-64
26.75-0.125
⁞
⁞
⁞
⁞
1111 1111 0000 0000
FF00
-256
26.75-0.5
⁞
⁞
⁞
⁞
1011 1001 1000 0000
B980
-18048
-10
The Resolution of the Integrated Temperature Sensor
Table 14.4. The Resolution of the Integrated Temperature Sensor
EFC[2:0] Setting
EFC= All Setting
Resolution
10-bit (0.125ºC)
9). ST2: Status 2 (Read Only Registers)
Address Name D7
D6
D5
D4
D3
D2
D1
D0
10H
ST2
Reset
1
1
1
1
1
1
1
1
Note:
* 16. ST2 register is the dummy data register for the measured data reading routine.ST2 register MUST
be read after reading out the measured data.
017005237-E-00
- 35 -
2017/04