User Manual
25
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
Modes of Operation
Wake-up Source Prioritization
All wake-up sources have the same priority. In order to handle the asynchronous nature of the wake-up
sources, the first wake-up signal will initiate the wake-up sequence. Nevertheless all wake-up sources are
latched in order to provide all wake-up events to the application software. The software can clear the wake-
up source flags. It is ensured, that no wake-up event is lost.
As default wake-up sources, MON inputs and cyclic wake are activated after power-on reset, LIN is disabled as
wake-up source by default.
Wake-up Levels and Transitions
The wake-up can be triggered by rising, falling or both signal edges for each monitor input individually.
LSx
ON/OFF
OFF
OFF
–
LIN TRx
ON/OFF
wake-up only / OFF wake-up only/
OFF
–
MONx (wake-up)
n.a.
disabled/static/
cyclic
disabled/static/
cyclic
cyclic: combined with
HS=on
MONx (measurement)
ON/OFF
OFF
OFF
available on all
channels
VS sense
ON/OFF
brownout
detection
brownout detection brownout
detection
brownout det. done
in PCU
VBAT_SENSE
ON/OFF
OFF
OFF
–
GPIO 5V
ON
OFF
ON
–
WDT1
ON
OFF
OFF
–
CYCLIC WAKE
n.a.
cyclic wake-up/
cyclic sense/OFF
cyclic wake-up/
cyclic sense/OFF
cyclic sense with HS;
wake-up needs MC
for enter Sleep Mode
again
Measurement
ON
1)
OFF
OFF
–
Micro Controller Unit
ON/slow-
down/STOP
OFF
OFF
–
CLOCK GEN (MC)
ON
OFF
OFF
–
LP_CLK (
f
LP_CLK
)
ON
OFF
OFF
WDT1
LP_CLK2 (
f
LP_CLK2
)
ON
ON
ON
for cyclic wake-up
1) May not be switched off due to safety reasons
Table 4
Power Mode Configurations
(cont’d)
Module/function
Active Mode
Sleep Mode
Stop Mode
Comment