RM0367 Rev 7 149/1043
RM0367 Power control (PWR)
172
Figure 12. Power supply supervisors
1. The PVD is available on all devices and it is enabled or disabled by software.
2. The BOR is available only on devices operating from 1.8 to 3.6 V, and unless disabled by option byte it will
mask the POR/PDR threshold.
3. When the BOR is disabled by option byte, the reset is asserted when V
DD
goes below PDR level
4. For devices operating from 1.65 to 3.6 V, there is no BOR and the reset is released when V
DD
goes above
POR level and asserted when V
DD
goes below PDR level
V
DD
/V
DD A
PVD output
100 mV
hysteresis
V
PVD
V
BO R
hysteresis
100 mV
IT enabled
BOR reset
(NRST)
POR/PDR reset
(NRST)
PVD
BOR always active
POR/PDR (BOR not available)
ai17211b
POR
V
/
PDR
V
BOR/PDR reset
(NRST)
BOR disabled by option byte