st92f124 STMicroelectronics, st92f124 Datasheet - Page 139
st92f124
Manufacturer Part Number
st92f124
Description
8/16-bit Single Voltage Flash Mcu Family With Ram, E3 Tmemulated Eeprom, Can 2.0b And J1850 Blpd
Manufacturer
STMicroelectronics
Datasheet
1.ST92F124.pdf
(426 pages)
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7.6 RESET/STOP MANAGER
The Reset/Stop Manager resets the MCU when
one of the three following events occurs:
– A Hardware reset, initiated by a low level on the
– A Software reset, initiated by a HALT instruction
– A Watchdog end of count condition.
The event which caused the last Reset is flagged
in the CLK_FLAG register, by setting either the
Figure 70. Oscillator Start-up Sequence and Reset Timing
Reset pin.
(when enabled with the SRESEN bit of the
CLKCTL register).
V
V
OSCIN
OSCOUT
INTCLK
RESET
PIN
DD
DD
MAX
MIN
T
STUP
ST92F124/F150/F250 - RESET AND CLOCK CONTROL UNIT (RCCU)
SOFTRES or the WDGRES bit or both; a hard-
ware initiated reset will leave both these bits reset.
The hardware reset overrides all other conditions
and forces the ST9 to the reset state. During Re-
set, the internal registers are set to their reset val-
ues (when these reset values are defined, other-
wise the register content will remain unchanged),
and the I/O pins are set to Bidirectional Weak-Pull-
Up or High impedance input. See
Reset is asynchronous: as soon as the reset pin is
driven low, a Reset cycle is initiated.
Section
VR02085A
7.3.
139/426
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