ST72F561K9TA STMicroelectronics, ST72F561K9TA Datasheet - Page 65

• Manufacturer Part Number: ST72F561K9TA
• Description: IC MCU 8BIT 60K FLASH 32-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F561K9TA

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, LINSCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: 497-8374 - BOARD DEVELOPMENT FOR ST72F561
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

PWM AUTO-RELOAD TIMER (Cont’d)
Output compare and Time base interrupt
On overflow, the OVF flag of the ARTCSR register
is set and an overflow interrupt request is generat-
ed if the overflow interrupt enable bit, OIE, in the
ARTCSR register, is set. The OVF flag must be re-
set by the user software. This interrupt can be
used as a time base in the application.
Figure 44. External Event Detector Example (3 counts)
f
EXT
COUNTER
=f
COUNTER
OVF
FDh
FEh
ARTARR=FDh
FFh
INTERRUPT
IF OIE=1
FDh
External clock and event detector mode
Using the f
auto-reload timer can be used as an external clock
event detector. In this mode, the ARTARR register
is used to select the n
be counted before setting the OVF flag.
n
Caution: The external clock function is not availa-
ble in HALT mode. If HALT mode is used in the ap-
plication, prior to executing the HALT instruction,
the counter must be disabled by clearing the TCE
bit in the ARTCSR register to avoid spurious coun-
ter increments.
ARTCSR READ
EVENT
FEh
= 256 - ARTARR
EXT
FFh
external prescaler input clock, the
INTERRUPT
IF OIE=1
EVENT
FDh
ARTCSR READ
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