User Manual
53
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
Power Management Unit (PMU)
6.5
Wake-up Management Unit (WMU)
The Wake-up Management Unit (WMU) is mainly responsible for handling the wake-up events on LIN, HV-
Monitoring Inputs (MON1 - MON4), Hardware reset and all GPIOs belonging to Port 0 and Port 1. Following
wake scenarios are possible:
•
Wake-up over Port 0 and Port 1 pins:
they can be configured for rising edge triggered and falling edge
triggered wake-up events. This configuration can be used to wake-up the device from normal Stop Mode
and Stop Mode with cyclic sense option. To bias the GPIOs, VDDEXT as current source can be used. The
wake-up feature from Sleep Mode in combination with GPIOs is not possible.
•
Wake-up over Hardware reset pin:
It can be used to wake-up the device from Stop Mode. The wake-up
feature from Sleep Mode is not possible.
•
Wake-up over MON1 - MON4 Pins:
the MONx Pins can be configured for rising edge triggered and falling
edge triggered wake-up events. This setup can be used to wake-up the device from Stop Mode with or
without cyclic sense, but also a wake-up from Sleep Mode with or without cyclic sense is possible.
•
LIN:
is a normal wake-up source and has no configuration possibilities.
•
Wake-up on VDDEXT fail from Stop Mode:
will be performed in case of VDDEXT failures described in
Chapter
Power Control Unit - Fail Safe Scenarios
•
Wake-up on high-side overtemperature from Stop / Sleep Mode:
will be performed in case of high-side
overtemperature failures described in Chapter
Power Control Unit - Fail Safe Scenarios
Note:
Field
Bits
Type
Description
RES
31:11
r
Reserved
Always read as 0
HS2_CYC_EN
10
rw
High-side 2 switch enable for cyclic sense
0
B
Disable
,
1
B
Enable
,
RES
9:3
r
Reserved
Always read as 0
HS1_CYC_EN
2
rw
High-side 1 switch enable for cyclic sense
0
B
Disable
,
1
B
Enable
,
RES
1:0
r
Reserved
Always read as 0
Table 13 RESET
Register Reset Type
Reset Values
Reset Short Name
Reset Mode
Note
RESET_TYPE_2
00000000
H
RESET_TYPE_2
31
11
r
RES
10
10
rw
HS
2*
9
3
r
RES
22
rw
HS
1*
1 0
r
RES