User Manual
76
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
Power Management Unit (PMU)
6.7.1.1
Reset Management Unit Registers (RMU)
The Reset Pin is a bidirectional signal. Every reset will be signaled on that pin for a few 100 ns. In order to avoid
any reset deadlock situation there is a programmable reset blind time, where no hardware pin reset will be
recognized and indicated in PMU_RESET_STS. The reset blind time envelopes the phase, where the reset pin
acts as an active reset output. The functionality of the reset blind time is sketched below:
Figure 24 Reset blind time
Note:
A capacitor connected to the reset pin (pin 21) might cause a delay of the rising edge in a range that
an "internal reset" is also indicated as pin reset (PMU_RESET_STS.PMU_PIN).
Reset Blind Time Register
PMU_CNF_RST_TFB
Offset
Reset Value
Reset Blind Time Register
06C
H
Field
Bits
Type
Description
RES
31:2
r
Reserved
Always read as 0
internal reset
Reset Pin
Reset Blind
Time
external reset
31
16
r
RES
15
2
r
RES
1
0
rw
RST_TFB