ST10F272M-4Q3 STMICROELECTRONICS [STMicroelectronics], ST10F272M-4Q3 Datasheet - Page 96

• Manufacturer Part Number: ST10F272M-4Q3
• Description: 16-bit MCU with 256 Kbyte Flash memory and 20 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

System reset
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Figure 31. System reset circuit
Figure 32. Internal (simplified) reset circuitry
Internal
Reset
Signal
ST10F272M
EINIT Instruction
RSTIN
RPD
Reset State
Machine
Clock
V
V
+
Clr
Trigger
DD
DD
R2
R0
C0
Asynchronous
Reset
Reset Sequence
(512 CPU Clock Cycles)
D1
External Hardware
Set
Clr
From/to Exit
Powerdown
Circuit
Open Drain Inverter
Q
o.d.
SRST instruction
watchdog overflow
BDRSTEN
External
Reset Source
D2
V
+
DD
R1
C1
V
V
DD
DD
Weak Pulldown
(~200µA)
RSTOUT
ST10F272M
RSTIN
RPD