Determination Of Reset Generation Source - Renesas RX100 Series User Manual

RX13T Group
6.3.7

Determination of Reset Generation Source

Reading RSTSR0 and RSTSR2 determines which reset was used to execute the reset exception handling.
Figure 6.4 shows an example of the flow to identify a reset generation source.
Reset exception
handling
RSTSR2.
SWRF = 1
Yes
Software
reset
Figure 6.4 Example of Reset Generation Source Determination Flow
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
No
No
RSTSR0.
LVD2RF = 1
Yes
RSTSR0.
LVD1RF = 1
Yes
IWDTRF=1
Voltage Voltage Independent
monitoring 2 monitoring 1
reset reset
No
No
RSTSR2.
Yes
No
RSTSR0.
LVD0RF=1
Yes
RSTSR0.
PORF=1
Yes
Voltage Power-on
watchdog monitoring 0
timer reset reset
No
RES# pin
reset reset
Page 105 of 1041
6. Resets