TLE9260-3QX Datasheet, PDF (96/175 Pages) Infineon Technologies AG – Dedicated Data Sheets are available for the different product variants

TLE9260-3QX
Supervision Functions
VCC
V_RT1
SPI
RO
t_RD1
t_LW
tCW
t < tRF
t_CW
tOW
The reset threshold can be
configured via SPI in SBC
Normal Mode , default is VRT1
undervoltage
t_OW
t_RD1
t
t_CW
t_LW
SPI
WD
WD
Init
Trigger
Trigger
t_RF
SPI
Init
t
SBC Init
t_LW= long open window
t_CW= closed window
tOW= open window
SBC Normal
SBC Restart
t
SBC Normal
Figure 40 Reset Timing Diagram
13.1.2 Soft Reset Description
In SBC Normal and SBC Stop Mode, it is also possible to trigger a device internal reset via a SPI command in
order to bring the SBC into a defined state in case of failures. In this case the microcontroller must send a SPI
command and set the MODE bits to ‘11’ in the M_S_CTRL register. As soon as this command becomes valid, the
SBC is set back to SBC INIT Mode and all SPI registers are set to their default values (see SPI Chapter 14.5 and
Chapter 14.6).
Two different soft reset configurations are possible via the SPI bit SOFT_ RESET_RO:
• The reset output (RO) is triggered when the soft reset is executed (default setting, the same reset delay time
t_RD1 applies)
• The reset output (RO) is not triggered when the soft reset is executed
Note: The device must be in SBC Normal Mode or SBC Stop Mode when sending this command.
Otherwise, the command will be ignored.
Data Sheet
96
Rev. 1.1, 2014-09-26