ST72521R9-Auto STMicroelectronics, ST72521R9-Auto Datasheet - Page 90
ST72521R9-Auto
Manufacturer Part Number
ST72521R9-Auto
Description
8-bit MCU for automotive
Manufacturer
STMicroelectronics
Datasheet
1.ST72521R9-AUTO.pdf
(276 pages)
Specifications of ST72521R9-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
12.1
Figure 35. PWM auto-reload timer block diagram
90/276
ARTCLK
ARTICx
PWMx
PWM auto-reload timer (ART)
Introduction
The Pulse Width Modulated Auto-Reload Timer on-chip peripheral consists of an 8-bit auto-
reload counter with compare/capture capabilities and of a 7-bit prescaler clock source.
These resources allow five possible operating modes:
●
●
●
●
●
The three first modes can be used together with a single counter frequency.
The timer can be used to wake up the MCU from Wait and Halt modes.
Generation of up to 4 independent PWM signals
Output compare and Time base interrupt
Up to 2 input capture functions
External event detector
Up to 2 external interrupt sources
PWMCR
f
f
EXT
CPU
ALTERNATE
FUNCTION
PORT
MUX
ICSx
OEx
f
INPUT
EXCL
INPUT CAPTURE
CONTROL
ICIEx
CC2
REGISTER
PROGRAMMABLE
PRESCALER
ARR
Doc ID 17660 Rev 1
f
COUNTER
POLARITY
CONTROL
CC1
ICFx
OPx
CC0
LOAD
ICCSR
TCE
(CAR REGISTER)
8-BIT COUNTER
FCRL
COMPARE
REGISTER
REGISTER
OCRx
ICRx
ICx INTERRUPT
OIE
OVF
LOAD
LOAD
ARTCSR
REGISTER
OVF INTERRUPT
DCRx
ST72521xx-Auto
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