STM32W108CBU6 STMICROELECTRONICS [STMicroelectronics], STM32W108CBU6 Datasheet - Page 122

• Manufacturer Part Number: STM32W108CBU6
• Description: High-performance, IEEE 802.15.4 wireless system-on-chip
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

General-purpose timers
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[15:12] TIM_IC4F: Input Capture 1 Filter. (Applies only if TIM_CC4S > 0)
[11:10] TIM_IC4PSC: Input Capture 1 Prescaler. (Applies only if TIM_CC4S > 0)
[9:8] TIM_CC4S: Capture / Compare 1 Selection
[6:4] TIM_OC3M: Output Compare 1 Mode. (Applies only if TIM_CC3S = 0)
[7:4] TIM_IC3F: Input Capture 1 Filter. (Applies only if TIM_CC3S > 0)
[3:2] TIM_IC3PSC: Input Capture 1 Prescaler. (Applies only if TIM_CC3S > 0)
[3] TIM_OC3BE: Output Compare 3 Buffer Enable. (Applies only if TIM_CC3S = 0)
[2] TIM_OC3FE: Output Compare 3 Fast Enable. (Applies only if TIM_CC3S = 0)
This defines the frequency used to sample the TI4 input, Fsampling, and the length of the
digital filter applied to TI4. The digital filter requires N consecutive samples in the same state
before being output.
0000: Fsampling=PCLK, no filtering.1000: Fsampling=PCLK/8, N=6.
0001: Fsampling=PCLK, N=2.1001: Fsampling=PCLK/8, N=8.
0010: Fsampling=PCLK, N=4.1010: Fsampling=PCLK/16, N=5.
0011: Fsampling=PCLK, N=8.1011: Fsampling=PCLK/16, N=6.
0100: Fsampling=PCLK/2, N=6.1100: Fsampling=PCLK/16, N=8.
0101: Fsampling=PCLK/2, N=8.1101: Fsampling=PCLK/32, N=5.
0110: Fsampling=PCLK/4, N=6.1110: Fsampling=PCLK/32, N=6.
0111: Fsampling=PCLK/4, N=8.1111: Fsampling=PCLK/32, N=8.
Note: PCLK is 12 MHz when using the 24 MHz crystal oscillator, and 6 MHz using the 12 MHz
00: No prescaling, capture each time an edge is detected on the capture input.
01: Capture once every 2 events.
10: Capture once every 4 events.
11: Capture once every 6 events.
This configures the channel as an output or an input. If an input, it selects the input source.
00: Channel is an output.
01: Channel is an input and is mapped to TI4.
10: Channel is an input and is mapped to TI3.
11: Channel is an input and is mapped to TRGI. This mode requires an internal trigger input
selected by the TIM_TS bit in the TIMx_SMCR register.
Note: TIM_CC2S may be written only when the channel is off (TIM_CC2E = 0 in the
See TIM_OC4M description above.
See TIM_OC4BE description above.
See TIM_OC4FE description above.
See TIM_IC4F description above.
See TIM_IC4PSC description above.
RC oscillator.
TIMx_CCER register).
Doc ID 16252 Rev 2
STM32W108CB, STM32W108HB