M4TKLG6AE Datasheet, PDF (69/144 Pages) List of Unclassifed Manufacturers – 32-bit Microcontroller

M4TK
AV_DD
V_LVR
T₁
( < LVRDGSEL)
T₂
( =LVRDGSEL)
Low Voltage Reset
LVREN
200 us _{Delay for LVR stable}
T₃
( =LVRDGSEL)
Figure 6.2-4 Low Voltage Reset (LVR) Waveform
6.2.2.4 Brown-out Detector Reset (BOD Reset)
If the Brown-out Detector (BOD) function is enabled by setting the Brown-out Detector Enable Bit
BODEN (SYS_BODCTL[0]), Brown-Out Detector function will detect AV_DD during system
operation. When the AV_DD voltage is lower than V_BOD and the state keeps longer than De-glitch
time set by BODDGSEL (SYS_BODCTL[10:8]), chip will be reset. The BOD reset will control the
chip in reset state until the AV_DD voltage rises above V_BOD and the state keeps longer than De-
glitch time set by BODDGSEL (SYS_BODCTL[10:8]). The default value of BODEN, BODVL and
BODRSTEN is set by flash controller user configuration register CBODEN (CONFIG0 [23]),
CBOV (CONFIG0 [22:21]) and CBORST(CONFIG0[20]) respectively. User can determine the
initial BOD setting by setting the CONFIG0 register. Figure 6.2-5 shows the Brown-Out Detector
waveform.
Jan. 06, 2016
Page 69 of 144
Rev.1.00