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ST72321BXXX-AUTO Datasheet(PDF) 72 Page - STMicroelectronics

Part # ST72321BXXX-AUTO
Description  8-bit MCU for automotive with 32 to 60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C interface
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72321BXXX-AUTO Datasheet(HTML) 72 Page - STMicroelectronics

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Power saving modes
ST72321Bxxx-Auto
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ones which get their clock supply from another clock generator (such as an external or
auxiliary oscillator).
The compatibility of Watchdog operation with Halt mode is configured by the ‘WDGHALT’
option bit of the option byte. The HALT instruction when executed while the Watchdog
system is enabled, can generate a Watchdog RESET (see Section 21.1.1: Flash
configuration on page 228 for more details).
Figure 27.
Halt timing overview
HALT
RUN
RUN
256 OR 4096 CPU
CYCLE DELAY
RESET
OR
INTERRUPT
HALT
INSTRUCTION
FETCH
VECTOR
[MCCSR.OIE = 0]


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