Advanced-control timers (TIM1&TIM8)
RM0008
Input capture mode
Bits 15:12 IC4F : Input capture 4 filter
Bits 11:10 IC4PSC : Input capture 4 prescaler
Bits 9:8 CC4S : Capture/Compare 4 selection
This bit-field defines the direction of the channel (input/output) as well as the used input.
00: CC4 channel is configured as output.
01: CC4 channel is configured as input, IC4 is mapped on TI4.
10: CC4 channel is configured as input, IC4 is mapped on TI3.
11: CC4 channel is configured as input, IC4 is mapped on TRC. This mode is working only
if an internal trigger input is selected through TS bit (TIMx_SMCR register)
Note: CC4S bits are writable only when the channel is OFF (CC4E = ‘0’ in TIMx_CCER).
Bits 7:4 IC3F : Input capture 3 filter
Bits 3:2 IC3PSC : Input capture 3 prescaler
Bits 1:0 CC3S : Capture/compare 3 selection
This bit-field defines the direction of the channel (input/output) as well as the used input.
00: CC3 channel is configured as output.
01: CC3 channel is configured as input, IC3 is mapped on TI3.
10: CC3 channel is configured as input, IC3 is mapped on TI4.
11: CC3 channel is configured as input, IC3 is mapped on TRC. This mode is working only
if an internal trigger input is selected through TS bit (TIMx_SMCR register)
Note: CC3S bits are writable only when the channel is OFF (CC3E = ‘0’ in TIMx_CCER).
13.4.9
TIM1&TIM8 capture/compare enable register (TIMx_CCER)
Address offset: 0x20
Reset value: 0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reserved
Res.
CC4P
rw
CC4E
rw
CC3N
P
rw
CC3N
E
rw
CC3P
rw
CC3E
rw
CC2N
P
rw
CC2N
E
rw
CC2P
rw
CC2E
rw
CC1N
P
rw
CC1N
E
rw
CC1P
rw
CC1E
rw
Bits 15:14 Reserved, always read as 0.
Bit 13 CC4P : Capture/Compare 4 output polarity
refer to CC1P description
Bit 12 CC4E : Capture/Compare 4 output enable
refer to CC1E description
Bit 11 CC3NP : Capture/Compare 3 complementary output polarity
refer to CC1NP description
Bit 10 CC3NE : Capture/Compare 3 complementary output enable
refer to CC1NE description
Bit 9 CC3P : Capture/Compare 3 output polarity
refer to CC1P description
Bit 8 CC3E : Capture/Compare 3 output enable
refer to CC1E description
308/995
Doc ID 13902 Rev 9
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