ST10F271E STMICROELECTRONICS [STMicroelectronics], ST10F271E Datasheet - Page 100

• Manufacturer Part Number: ST10F271E
• Description: 16-bit MCU with 128 Kbyte Flash memory and 8/12 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

System reset
100/180
Figure 31. System reset circuit
Figure 32. Internal (simplified) reset circuitry
Internal
Reset
Signal
ST10F271
EINIT Instruction
RSTIN
RPD
Reset State
Machine
V
V
+
Clock
DD
DD
Clr
Trigger
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
ST10F271B/ST10F271E
V
+
DD
V
V
R1
C1
DD
DD
Weak Pulldown
(~200µA)
RSTOUT
RSTIN
RPD