ST72561AR7-Auto datasheet(127/324 Pages) STMICROELECTRONICS

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ST72561AR7-Auto Arkusz danych(PDF) 127 Page - STMicroelectronics

Numer części	ST72561AR7-Auto

Szczegółowy opis	Clock, reset and supply management

PDF	324 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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127 / 324 page

ST72561-Auto

8-bit timer (TIM8)

Doc ID 12370 Rev 8

127/324

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 fCPU clock

cycles depending on the CC[1:0] bits.

The timer frequency can be fCPU/2, fCPU/4, fCPU/8 or fOSC2 /8000.

For example, if fOSC2/8000 is selected, and fOSC2 = 8 MHz, the timer frequency will be 1 ms.

Refer to Table 55.

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