ST72325R6-AUTO STMicroelectronics, ST72325R6-AUTO Datasheet - Page 99

• Manufacturer Part Number: ST72325R6-AUTO
• Description: 8-bit Mcu For Automotive With 16 To 60 Kbyte Flash, Adc, Css, 5 Timers, Spi, Sci, I2c Interface
• Manufacturer: STMicroelectronics

ST72325xxx-Auto
Figure 39. PWM auto-reload timer function
Figure 40. PWM signal from 0% to 100% duty cycle
12.2.6
12.2.7
Caution:
AUTO-RELOAD
DUTY CYCLE
(PWMDCRx)
WITH OEx=1
AND OPx=0
WITH OEx=1
AND OPx=1
REGISTER
REGISTER
(ARTARR)
Output compare and time base interrupt
On overflow, the OVF flag of the ARTCSR register is set and an overflow interrupt request is
generated if the overflow interrupt enable bit, OIE, in the ARTCSR register, is set. The OVF
flag must be reset by the user software. This interrupt can be used as a time base in the
application.
External clock and event detector mode
Using the f
external clock event detector. In this mode, the ARTARR register is used to select the
n
The external clock function is not available in Halt mode. If Halt mode is used in the
application, prior to executing the HALT instruction, the counter must be disabled by clearing
the TCE bit in the ARTCSR register to avoid spurious counter increments.
OCRx=FCh
OCRx=FDh
EVENT
OCRx=FEh
OCRx=FFh
COUNTER
f
COUNTER
255
000
number of events to be counted before setting the OVF flag.
EXT
FDh
external prescaler input clock, the auto-reload timer can be used as an
FEh
ARTARR = FDh
FFh
n
EVENT
FDh
= 256 - ARTARR
FEh
FFh
PWM auto-reload timer (ART)
FDh
FEh
t
99/250
t