User Manual
919
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
10-Bit Analog Digital Converter (ADC1)
24.11
Start-up Behavior after Reset
After the end of a reset phase the measurement sources and the post-processing units need some time for
settling. In order to avoid undesired triggering of interrupts until the measurement signal acquisition is in a
steady state, the status signals are forced to zero during the start-up phase.
The end of the start-up phase is indicated by the ready signal MI_RDY, in bit ADC1_CTRL3.MCM_RDY.
Measurement Core start-up procedure:
the startup time of the complete signal chain are 2200 EoC cycles.
The IIR-filter coefficient is set to C=2^-1 (fastest response time).
During the startup phase, the DPP will use SQ=1111_1111_1111, regardless of the sequence registers
configuration.
During the startup phase, the output registers ADC1_FILTOUT_CHx is normally updated with the converted
values. It is recommended to clear all registers before the will be used for applikation purposes.