Brown-Out Detector And Low Voltage Reset Controller Configuration; Table 6.2.6-1 Brown-Out Detector And Low Voltage Reset Controller Effect Table - Nuvoton ISD94124BYI Technical Reference Manual

6.2.6

Brown-out Detector and Low Voltage Reset Controller Configuration

ISD94100 series is equipped with brown-out detector and low voltage reset controller function. Low
voltage reset controller is enabled by setting LVREN(SYS_BODCTL[7]) to 1. Brown-out detector is
enabled by setting both LVREN(SYS_BODCTL[7]) and BODEN(SYS_BODCTL[0]) to 1. Both
brown-out detector and low voltage reset controller also integrates low power mode function, the
low power mode is enabled by setting BODLPM(SYS_BODCTL[5]). When enable low power mode,
brown-out detector and low voltage reset controller will consume less power, but the detection
speed will become slow (The response time is about 13ms). When using brown-out detector and
low voltage reset controller, the LIRC must be turned on. In addition, the brown-out detector cannot
operate independently without enabled low voltage reset controller.
Power Mode LVREN
(SYS_BODCTL[7])
Normal / Idle / PD 0
1
1
1
LLPD / SPD0 / 0
SPD1
1
1
1
DPD X

Table 6.2.6-1 Brown-out Detector and Low Voltage Reset Controller Effect Table

Note: X means don't care, write 1 or 0 to correspond register bit will not affect functionality.
Sep 9, 2019
ISD94100 Series Technical Reference Manual
BODEN
(SYS_BODCTL[0])
X
0
1
1
X
0
1
1
X
Page 61 of 928
BODLPM LVR / BOD Operation Mode
(SYS_BODCTL[5])
LVR
X Disabled
X Normal
0 Normal
1 Low power
X Disabled
X Low power
0 Normal
1 Low power
X Disabled
BOD
Disabled
Disabled
Normal
Low power
Disabled
Disabled
Normal
Low power
Disabled
Rev1.09