STMicroelectronics ST72361 Auto Series Manual page 125

ST72361xx-Auto 8-bit timer (TIM8)
Writing in the CTR register or ACTR register resets the free running counter to the FCh
value.
Both counters have a reset value of FCh (this is the only value which is reloaded in the 8-bit
timer). The reset value of both counters is also FCh in One Pulse mode and PWM mode.
The timer clock depends on the clock control bits of the CR2 register, as shown in Table 55.
The value in the counter register repeats every 512, 1024, 2048 or 20480000 f clock
CPU
cycles depending on the CC[1:0] bits.
The timer frequency can be f /2, f /4, f /8 or f /8000.
CPU CPU CPU OSC2
For example, if f /8000 is selected, and f = 8 MHz, the timer frequency will be 1 ms.
OSC2 OSC2
Refer to Table 55.
Doc ID 12468 Rev 3 125/279