Low-power timer (LPTIM) RM0453
970/1461 RM0453 Rev 1
28.7.2 LPTIM interrupt clear register (LPTIM_ICR)
Address offset: 0x004
Reset value: 0x0000 0000
Bit 3 CMPOK: Compare register update OK
CMPOK is set by hardware to inform application that the APB bus write operation to the
LPTIM_CMP register has been successfully completed.
Bit 2 EXTTRIG: External trigger edge event
EXTTRIG is set by hardware to inform application that a valid edge on the selected external trigger
input has occurred. If the trigger is ignored because the timer has already started, then this flag is
not set. EXTTRIG flag can be cleared by writing 1 to the EXTTRIGCF bit in the LPTIM_ICR register.
Bit 1 ARRM: Autoreload match
ARRM is set by hardware to inform application that LPTIM_CNT register’s value reached the
LPTIM_ARR register’s value. ARRM flag can be cleared by writing 1 to the ARRMCF bit in the
LPTIM_ICR register.
Bit 0 CMPM: Compare match
The CMPM bit is set by hardware to inform application that LPTIM_CNT register value reached the
LPTIM_CMP register’s value.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
1514131211109876543210
Res. Res. Res. Res. Res. Res. Res.
REPOK
CF
UECF
DOWN
CF
UPCF
ARRO
KCF
CMPO
KCF
EXTTR
IGCF
ARRM
CF
CMPM
CF
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Bits 31:9 Reserved, must be kept at reset value.
Bit 8 REPOKCF: Repetition register update OK clear flag
Writing 1 to this bit clears the REPOK flag in the LPTIM_ISR register.
Bit 7 UECF: Update event clear flag
Writing 1 to this bit clear the UE flag in the LPTIM_ISR register.
Bit 6 DOWNCF: Direction change to down clear flag
Writing 1 to this bit clear the DOWN flag in the LPTIM_ISR register.
Note: If the LPTIM does not support encoder mode feature, this bit is reserved. Please refer to
Section 28.3: LPTIM implementation.
Bit 5 UPCF: Direction change to UP clear flag
Writing 1 to this bit clear the UP flag in the LPTIM_ISR register.
Note: If the LPTIM does not support encoder mode feature, this bit is reserved. Please refer to
Section 28.3: LPTIM implementation.
Bit 4 ARROKCF: Autoreload register update OK clear flag
Writing 1 to this bit clears the ARROK flag in the LPTIM_ISR register
Bit 3 CMPOKCF: Compare register update OK clear flag
Writing 1 to this bit clears the CMPOK flag in the LPTIM_ISR register
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