MLX75030 Datasheet, PDF (47/72 Pages) Melexis Microelectronic Systems – Universal ActiveLight Sensor Interface

MLX75030 Universal ActiveLight Sensor Interface
Datasheet
1
1
1
0
30
1
1
1
1
32
EN_DCCOMP: 1 = enables the DC light compensation, 0 = disables the DC light
compensation
RPF<2:0>: frequency selection of pulses for the active light measurements, as defined
below:
Bit 2 - RPF2 Bit 1 - RPF1 Bit 0 - RPF0
Frequency of Pulses
(in kHz, +/-5%)
0
0
0
48.1
0
0
1
52.1
0
1
0
56.8
0
1
1
62.5
1
0
0
69.4
1
0
1
78.1
1
1
0
89.3
1
1
1
104.2
7.4.7. Err register
As described in Section 7.3 (under section 'Bit 0: Critical Error is detected/not detected'), the voltages on critical nodes are
monitored continuously. When a voltage on such a critical node goes outside its operating range, the Critical Error Flag and
the appropriate error bit in the 'Err' register will be set high. As such, the source of the error can be found in the 'Err'
register.
The error bit remains high as long as the error condition is present, or as long as the error bit is not cleared (in case the error
condition is not present anymore).
Bit
7
6
5
4
3
2
1
0
Err
-
Err6
Err5
Err4
Err3
Err2
Err1
-
0x6
Read/Writ
e
R
R/W* R/W* R/W* R/W* R/W* R/W*
R
Init
0
0
0
x**
x**
x**
0
0
The following bits are defined (0= no error detected; 1=error is detected):
Err<7>: not implemented, read as '0'
Err6: critical error detected on TIA output
Err5: critical error detected on the difference between DAC output and shunt-feedback
Err4: critical error detected on internal voltage reference: when the internal voltage
reference is below 1V.
Err3: critical error detected on one of the common mode SC-filters of the ambient
light/temperature channels
Err2: critical error detected on RCO: either a stuck-at-high or a stuck-at-low condition
occurred at the output of the RCO. Note that in SLP, the error flag on the RCO will be set
high.
Err1: set to '1' when a falling edge on the WT pin is detected while the device is in Sleep
Mode
Err<0>: not implemented, read as '0'
REVISION 005 – DECEMBER 2013
3901075030
PAGE 47 OF 72