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Advanced-control timers (TIM1&TIM8)
RM0008
13.4.17
TIM1&TIM8 capture/compare register 4 (TIMx_CCR4)
Address offset: 0x40
Reset value: 0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CCR4[15:0]
rw
rw
rw
rw
rw
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rw
rw
rw
rw
rw
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rw
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rw
Bits 15:0 CCR4[15:0] : Capture/Compare value
If channel CC4 is configured as output :
CCR4 is the value to be loaded in the actual capture/compare 4 register (preload value).
It is loaded permanently if the preload feature is not selected in the TIMx_CCMR4 register (bit
OC4PE). Else the preload value is copied in the active capture/compare 4 register when an
update event occurs.
The active capture/compare register contains the value to be compared to the counter
TIMx_CNT and signalled on OC4 output.
If channel CC4 is configured as input :
CCR4 is the counter value transferred by the last input capture 4 event (IC4).
13.4.18
TIM1&TIM8 break and dead-time register (TIMx_BDTR)
Address offset: 0x44
Reset value: 0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
MOE
AOE
BKP
BKE
OSSR
OSSI
LOCK[1:0]
DTG[7:0]
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rw
rw
rw
rw
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rw
rw
rw
rw
rw
rw
rw
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rw
Note:
314/995
As the bits AOE, BKP, BKE, OSSI, OSSR and DTG[7:0] can be write-locked depending on
the LOCK configuration, it can be necessary to configure all of them during the first write
access to the TIMx_BDTR register.
Bit 15 MOE : Main output enable
This bit is cleared asynchronously by hardware as soon as the break input is active. It is set
by software or automatically depending on the AOE bit. It is acting only on the channels
which are configured in output.
0: OC and OCN outputs are disabled or forced to idle state.
1: OC and OCN outputs are enabled if their respective enable bits are set (CCxE, CCxNE in
TIMx_CCER register).
See OC/OCN enable description for more details ( Section 13.4.9: TIM1&TIM8
capture/compare enable register (TIMx_CCER) on page 308 ).
Bit 14 AOE : Automatic output enable
0: MOE can be set only by software
1: MOE can be set by software or automatically at the next update event (if the break input is
not be active)
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Doc ID 13902 Rev 9
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