User Manual
721
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
Measurement Core Module (incl. ADC2)
23.6.2
IIR Filter Control Registers
The IIR Filter can also be configured by the
sfr
Register shown below. The registers which cannot be written by
the user have the attribute
rwp
.
to
registers are 10 bits wide, but the ADC delivers only a resolution
shows how the lower two bits are determined.
The result of the calibration unit is 10 bits (see
), the output is feed into the IIR filter. The internal result
of the IIR filter is 12 bits (see
), the output is converted to 10 bit and feed into the postprocessing. The
user can monitor the calculated values in the
registers and gets
access to 10 bit wide result information.
Table 386 ADC2_FILT_OUT Register Setting
.calib_en
.output[1:0]
0
0
“00”
0
1
“filt_out(3:2)”
1
0
“calib_out(1:0)”
1
1
“filt_out(3:2)”
Table 387 Register
Overview
Register Short Name
Register Long Name
Offset Address
Reset Value
Filter Coefficients ADC Channel 0-7
48
H
0000 1555
H
ADC or Filter Output Channel 0
50
H
0000 0000
0000 0000
0000 00XX
XXXX XXXX
B
ADC or Filter Output Channel 1
54
H
0000 0000
0000 0000
0000 00XX
XXXX XXXX
B
ADC or Filter Output Channel 2
58
H
0000 0000
0000 0000
0000 00XX
XXXX XXXX
B
ADC or Filter Output Channel 3
5C
H
0000 0000
0000 0000
0000 00XX
XXXX XXXX
B
ADC or Filter Output Channel 4
60
H
0000 0000
0000 0000
0000 00XX
XXXX XXXX
B