Inter-integrated circuit (I2C) interface RM0453
1110/1450 RM0453 Rev 5
34.7.8 I2C interrupt clear register (I2C_ICR)
Address offset: 0x1C
Reset value: 0x0000 0000
Access: No wait states
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.
ALERT
CF
TIMOU
TCF
PECCF OVRCF
ARLOC
F
BERRC
F
Res. Res.
STOPC
F
NACKC
F
ADDR
CF
Res. Res. Res.
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Bits 31:14 Reserved, must be kept at reset value.
Bit 13 ALERTCF: Alert flag clear
Writing 1 to this bit clears the ALERT flag in the I2C_ISR register.
Note: If the SMBus feature is not supported, this bit is reserved and forced by hardware to ‘0’.
Refer to Section 34.3.
Bit 12 TIMOUTCF: Timeout detection flag clear
Writing 1 to this bit clears the TIMEOUT flag in the I2C_ISR register.
Note: If the SMBus feature is not supported, this bit is reserved and forced by hardware to ‘0’.
Refer to Section 34.3.
Bit 11 PECCF: PEC Error flag clear
Writing 1 to this bit clears the PECERR flag in the I2C_ISR register.
Note: If the SMBus feature is not supported, this bit is reserved and forced by hardware to ‘0’.
Refer to Section 34.3.
Bit 10 OVRCF: Overrun/Underrun flag clear
Writing 1 to this bit clears the OVR flag in the I2C_ISR register.
Bit 9 ARLOCF: Arbitration lost flag clear
Writing 1 to this bit clears the ARLO flag in the I2C_ISR register.
Bit 8 BERRCF: Bus error flag clear
Writing 1 to this bit clears the BERRF flag in the I2C_ISR register.
Bits 7:6 Reserved, must be kept at reset value.
Bit 5 STOPCF: STOP detection flag clear
Writing 1 to this bit clears the STOPF flag in the I2C_ISR register.
Bit 4 NACKCF: Not Acknowledge flag clear
Writing 1 to this bit clears the NACKF flag in I2C_ISR register.
Bit 3 ADDRCF: Address matched flag clear
Writing 1 to this bit clears the ADDR flag in the I2C_ISR register. Writing 1 to this bit also
clears the START bit in the I2C_CR2 register.
Bits 2:0 Reserved, must be kept at reset value.
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