MLX75030 Datasheet, PDF (49/72 Pages) Melexis Microelectronic Systems – Universal ActiveLight Sensor Interface

MLX75030 Universal ActiveLight Sensor Interface
Datasheet
7.4.8. Rst register
This register allows differentiation of either a POR or a reset due to a watchdog time-out + settings for the DC light
compensation circuitry.
Bit
7
6
5
4
3
DC_
DC_
DC_
DC_
Rst
COMP_ COMP_ COMP_ COMP_
-
IC13 IC12 IC11 IC10
0x7
Read/Writ
e
R/W
R/W
R/W
R/W
R
Init
0
0
0
0
0
2
1
0
-
TO
POR
R
R
R/W
0
0
1
DC_COMP_IC1<3:0>: setting of the amplitude of the 1st PWL slope
Rst<3:2>: not implemented, read as '0'
TO: 1=a Watchdog time-out and a master reset occurred. 0=no Watchdog time-out
occurred, or after Power-On, or after a falling edge at the WT pin
POR: 1=a POR occurred, 0=a POR has not occurred. To detect subsequent Power-On-Resets,
the POR-bit shall be cleared right after Power-On.
7.4.9. DCComp register
This register contains settings for the DC light compensation circuitry. These settings have to be calculated for the individual
application (ActiveLight-channel photodiode used).
Bit
7
6
5
4
3
2
1
0
DC_
DC_
DC_
DC_
DCComp1
COMP_ COMP_ COMP_ COMP_
IC23 IC22 IC21 IC20
0x8
Read/
Write
R
R
R
R
R/W R/W R/W R/W
Init
X
X
X
X
0
0
0
0
DC_COMP_IC2<3:0>: setting of the amplitude of the 2nd PWL slope
DCComp2
0x9
Bit
Read/
Write
Init
7
DC_
COMP_
IC33
R/W
0
6
DC_
COMP_
IC32
R/W
0
5
DC_
COMP_
IC31
R/W
0
4
DC_
COMP_
IC30
R/W
0
3
DC_
COMP_
IC43
R/W
0
2
DC_
COMP_
IC42
R/W
0
1
DC_
COMP_
IC41
R/W
0
0
DC_
COMP_
IC40
R/W
0
DC_COMP_IC3<3:0>: setting of the amplitude of the 3rd PWL slope
DC_COMP_IC4<3:0>: setting of the amplitude of the 4th PWL slope
REVISION 005 – DECEMBER 2013
3901075030
PAGE 49 OF 72