R01UH0822EJ0100 Rev.1.00
Page 95 of 1041
Jul 31, 2019
RX13T Group
6. Resets
The internal state and pins are initialized by a reset.
lists the reset targets to be initialized.
○: Targets to be initialized, —: No change occurs.
Note 1. Initialized at a power-on.
When a reset is canceled, the reset exception handling starts. For the reset exception handling, see
lists the pin related to the reset.
Table 6.2
Targets Initialized by Each Reset Source
Target to be Initialized
Reset Source
RES# Pin
Reset
Power-On
Reset
Voltage
Monitoring 0
Reset
Independent
Watchdog
Timer Reset
Voltage
Monitoring 1
Reset
Voltage
Monitoring 2
Reset
Software
Reset
The power-on reset detect flag
(RSTSR0.PORF)
○
—
—
—
—
—
—
Register related to the cold start/warm start
determination flag
(RSTSR1.CWSF)
○
—
—
—
—
—
Voltage monitoring 0 reset detect flag
(RSTSR0.LVD0RF)
○
○
—
—
—
—
—
The independent watchdog timer reset detect
flag
(RSTSR2.IWDTRF)
○
○
○
—
—
—
—
Registers related to the independent watchdog
timer
(IWDTRR, IWDTCR, IWDTSR, IWDTRCR,
IWDTCSTPR, ILOCOCR)
○
○
○
—
—
—
—
The voltage monitoring 1 reset detect flag
(RSTSR0.LVD1RF)
○
○
○
○
—
—
—
Registers related to voltage monitor function 1
(LVD1CR0, LVCMPCR.LVD1E,
LVDLVLR.LVD1LVL[3:0])
○
○
○
○
—
—
—
(LVD1CR1, LVD1SR)
○
○
○
○
—
—
—
The voltage monitoring 2 reset detect flag
(RSTSR0.LVD2RF)
○
○
○
○
○
—
—
Registers related to voltage monitor function 2
(LVD2CR0, LVD2E, LVDLVLR.LVD2LVL[1:0])
○
○
○
○
○
—
—
(LVD2CR1, LVD2SR)
○
○
○
○
○
—
—
The software reset detect flag
(RSTSR2.SWRF)
○
○
○
○
○
○
—
Registers other than the above, CPU, and
internal state
○
○
○
○
○
○
○
Table 6.3
Pin Related to Reset
Pin Name
I/O
Function
RES#
Input
Reset pin