參數(shù)資料
型號: ST72124J2B7
廠商: 意法半導(dǎo)體
英文描述: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
中文描述: 8位單電壓閃存,ADC和16位定時(shí)器,SPI和脊髓損傷界面微控制器
文件頁數(shù): 28/125頁
文件大?。?/td> 776K
代理商: ST72124J2B7
ST72334J/N, ST72314J/N, ST72124J
28/125
RESET SEQUENCE MANAGER
(Cont’d)
Internal Low Voltage Detection RESET
Two different RESET sequences caused by the in-
ternal LVD circuitry can be distinguished:
I
Power-On RESET
I
Voltage Drop RESET
The device RESET pin acts as an output that is
pulled low when V
DD
<V
LVDr
(rising edge) or
V
DD
<V
LVDf
(falling edge) as shown in Figure 9.
Figure 17. LVD RESET Sequences
RESET
RUN
INTERNAL RESET
4096 CLOCK CYCLES
FETCH
VECTOR
RESET PIN
EXTERNAL RESET SOURCE
WATCHDOG RESET
DELAY
RESET
RUN
INTERNAL RESET
4096 CLOCK CYCLES
FETCH
VECTOR
RUN
RESET PIN
EXTERNAL RESET SOURCE
V
DD
V
DDnominal
V
LVDr
V
LVDf
WATCHDOG RESET
DELAY
V
DD
V
DDnominal
V
LVDr
P
V
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