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General-purpose timer (TIMx)
RM0008
Bit 2 CC2IF : Capture/Compare 2 interrupt flag
refer to CC1IF description
Bit 1 CC1IF : Capture/compare 1 interrupt flag
If channel CC1 is configured as output:
This flag is set by hardware when the counter matches the compare value, with some
exception in center-aligned mode (refer to the CMS bits in the TIMx_CR1 register
description). It is cleared by software.
0: No match.
1: The content of the counter TIMx_CNT has matched the content of the TIMx_CCR1
register.
If channel CC1 is configured as input:
This bit is set by hardware on a capture. It is cleared by software or by reading the
TIMx_CCR1 register.
0: No input capture occurred.
1: The counter value has been captured in TIMx_CCR1 register (An edge has been
detected on IC1 which matches the selected polarity).
Bit 0 UIF : Update interrupt flag
–This bit is set by hardware on an update event. It is cleared by software.
0: No update occurred.
1: Update interrupt pending. This bit is set by hardware when the registers are updated:
–At overflow or underflow regarding the repetition counter value (update if repetition
counter = 0) and if the UDIS=0 in the TIMx_CR1 register.
–When CNT is reinitialized by software using the UG bit in TIMx_EGR register, if URS=0
and UDIS=0 in the TIMx_CR1 register.
–When CNT is reinitialized by a trigger event (refer to the synchro control register
description), if URS=0 and UDIS=0 in the TIMx_CR1 register.
14.4.6
TIMx event generation register (TIMx_EGR)
Address offset: 0x14
Reset value: 0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
TG
CC4G
CC3G
CC2G
CC1G
UG
Reserved
Res.
w
w
w
w
w
w
Bits 15:7 Reserved, always read as 0.
Bit 6 TG : Trigger generation
This bit is set by software in order to generate an event, it is automatically cleared by
hardware.
0: No action.
1: The TIF flag is set in TIMx_SR register. Related interrupt or DMA transfer can occur if
enabled.
Bit 5 Reserved, always read as 0.
Bit 4 CC4G : Capture/compare 4 generation
refer to CC1G description
Bit 3 CC3G : Capture/compare 3 generation
refer to CC1G description
362/995
Doc ID 13902 Rev 9
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