R01UH0823EJ0100 Rev.1.00
Page 136 of 1823
Jul 31, 2019
RX23W Group
6. Resets
6. Resets
6.1
Overview
The following resets are implemented: RES# pin reset, power-on reset, voltage monitoring 0 reset, voltage monitoring 1
reset, independent watchdog timer reset, watchdog timer reset, and software reset.
lists the reset names and sources.
Note 1. For the voltages to be monitored (VPOR, Vdet0, and Vdet1), see section 8, Voltage Detection Circuit (LVDAb) and section 51,
Table 6.1
Reset Names and Sources
Reset Name
Source
RES# pin reset
Voltage input to the RES# pin is driven low.
Power-on reset
VCC rises (voltage monitored: VPOR)
Voltage monitoring 0 reset
VCC falls (voltage monitored: Vdet0)
Voltage monitoring 1 reset
VCC falls (voltage monitored: Vdet1)
Independent watchdog timer reset
The independent watchdog timer underflows, or a refresh error occurs.
Watchdog timer reset
The watchdog timer underflows, or a refresh error occurs.
Software reset
Register setting