Capture/Compare Mode Register 2 (Timx_Ccmod2) - Nations N32G43 Series User Manual

Bit field Name
7:4 IC1F[3:0]
3:2 IC1PSC[1:0]
1:0 CC1SEL[1:0]

Capture/compare mode register 2 (TIMx_CCMOD2)

Offset address: 0x1C
Reset value: 0x0000
See the description of the CCMOD1 register above
Description
Input Capture 1 filter
These bits are used to define sampling frequency of TI1 input and the length of digital filter. The
digital filter is an event counter that generates an output transition after N events are recorded.
0000: No filter, sampling at f
DTS
0001: f = f , N = 2
SAMPLING CK_INT
0010: f = f , N = 4
SAMPLING CK_INT
0011: f = f , N = 8
SAMPLING CK_INT
0100: f = f /2, N = 6
SAMPLING DTS
0101: f = f /2, N = 8
SAMPLING DTS
0110: f = f /4, N = 6
SAMPLING DTS
0111: f = f /4, N = 8
SAMPLING DTS
1000: f = f /8, N = 6
SAMPLING DTS
1001: f = f /8, N = 8
SAMPLING DTS
1010: f = f /16, N = 5
SAMPLING DTS
1011: f = f /16, N = 6
SAMPLING DTS
1100: f = f /16, N = 8
SAMPLING DTS
1101: f = f /32, N = 5
SAMPLING DTS
1110: f = f /32, N = 6
SAMPLING DTS
1111: f = f /32, N = 8
SAMPLING DTS
Input Capture 1 prescaler
These bits are used to select the ratio of the prescaler for IC1 (CC1 input).
When TIMx_CCEN.CC1EN = 0, the prescaler will be reset.
00: No prescaler, capture is done each time an edge is detected on the capture input
01: Capture is done once every 2 events
10: Capture is done once every 4 events
11: Capture is done once every 8 events
Capture/Compare 1 selection
These bits are used to select the input/output and input mapping of the channel
00: CC1 channel is configured as output
01: CC1 channel is configured as input, IC1 is mapped on TI1
10: CC1 channel is configured as input, IC1 is mapped on TI2
11: CC1 channel is configured as input, IC1 is mapped to TRC. This mode is only active when
the internal trigger input is selected by TIMx_SMCTRL.TSEL.
Note: CC1SEL is writable only when the channel is off (TIMx_CCEN.CC1EN = 0).
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frequency
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