STM8AF6289TAY STMicroelectronics, STM8AF6289TAY Datasheet - Page 21
![no-image](/images/manufacturer_photos/0/6/637/stmicroelectronics_sml.jpg)
STM8AF6289TAY
Manufacturer Part Number
STM8AF6289TAY
Description
8-bit Microcontrollers - MCU 8-Bit Automotive MCU EEPROM 96kb Flash
Manufacturer
STMicroelectronics
Datasheet
1.STM8AF5289TCX.pdf
(110 pages)
Specifications of STM8AF6289TAY
Product Category
8-bit Microcontrollers - MCU
Rohs
yes
Core
STM8A
Data Bus Width
8 bit
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STM8AF6289TAY
Manufacturer:
STMicroelectronics
Quantity:
10 000
STM8AF52/62xx, STM8AF51/61xx
5.7
5.7.1
5.7.2
5.7.3
5.7.4
Timers
Watchdog timers
The watchdog system is based on two independent timers providing maximum security to
the applications. The watchdog timer activity is controlled by the application program or
option bytes. Once the watchdog is activated, it cannot be disabled by the user program
without going through reset.
Window watchdog timer
The window watchdog is used to detect the occurrence of a software fault, usually
generated by external interferences or by unexpected logical conditions, which cause the
application program to abandon its normal sequence.
The window function can be used to trim the watchdog behavior to match the application
timing perfectly. The application software must refresh the counter before time-out and
during a limited time window. If the counter is refreshed outside this time window, a reset is
issued.
Independent watchdog timer
The independent watchdog peripheral can be used to resolve malfunctions due to hardware
or software failures.
It is clocked by the 128 kHz LSI internal RC clock source, and thus stays active even in case
of a CPU clock failure. If the hardware watchdog feature is enabled through the device
option bits, the watchdog is automatically enabled at power-on, and generates a reset
unless the key register is written by software before the counter reaches the end of count.
Auto-wakeup counter
This counter is used to cyclically wakeup the device in Active-halt mode. It can be clocked by
the internal 128 kHz internal low-frequency RC oscillator or external clock.
LSI clock can be internally connected to TIM3 input capture channel 1 for calibration.
Beeper
This function generates a rectangular signal in the range of 1, 2 or 4 kHz which can be
output on a pin. This is useful when audible sounds without interference need to be
generated for use in the application.
Advanced control and general purpose timers
STM8A devices described in this datasheet, contain up to three 16-bit advanced control and
general purpose timers providing nine CAPCOM channels in total. A CAPCOM channel can
be used either as input compare, output compare or PWM channel. These timers are
named TIM1, TIM2 and TIM3.
Doc ID 14395 Rev 9
Product overview
21/110