ST72321R6-Auto STMicroelectronics, ST72321R6-Auto Datasheet - Page 92
ST72321R6-Auto
Manufacturer Part Number
ST72321R6-Auto
Description
8-bit MCU for automotive with 32 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
Manufacturer
STMicroelectronics
Datasheet
1.ST72321R9-AUTO.pdf
(243 pages)
Specifications of ST72321R6-Auto
Hdflash Endurance
100 cycles, data retention 20 years
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
4 Power Saving Modes
Halt, Active Halt, Wait and Slow
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PWM auto-reload timer (ART)
12.2.9
92/243
External interrupt capability
This mode allows the input capture capabilities to be used as external interrupt sources. The
interrupts are generated on the edge of the ARTICx signal.
The edge sensitivity of the external interrupts is programmable (CSx bit of ARTICCSR
register) and they are independently enabled through CIEx bits of the ARTICCSR register.
After fetching the interrupt vector, the CFx flags can be read to identify the interrupt source.
During Halt mode, the external interrupts can be used to wake up the micro (if the CIEx bit is
set).
Figure 40. Input capture timing diagram
ICRx REGISTER
ARTICx PIN
COUNTER
CFx FLAG
f
COUNTER
01h
Doc ID 13829 Rev 1
02h
xxh
03h
04h
05h
INTERRUPT
04h
06h
07h
ST72321xx-Auto
t
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