I2Cn_If - Interrupt Flag Register - Silicon Laboratories EFR32xG14 Wireless Gecko Reference Manual

17.5.14 I2Cn_IF - Interrupt Flag Register

Offset
0x034
Reset
Access
Name
Bit Name
31:19 Reserved
18 CLERR
Set when the clock is pulled low before a START or a STOP condition could be transmitted.
17 RXFULL
Set when the receive buffer becomes full.
16 SSTOP
Set when a STOP condition has been received. Will be set regardless of the slave being involved in the transaction or not.
15 CLTO
Set on each clock low timeout. The timeout value can be set in CLTO bit field in the I2Cn_CTRL register.
14 BITO
Set on each bus idle timeout. The timeout value can be set in the BITO bit field in the I2Cn_CTRL register.
13 RXUF
Set when data is read from the receive buffer through the I2Cn_RXDATA register while the receive buffer is empty. It is also
set when data is read through the I2Cn_RXDOUBLE while the buffer is not full.
12 TXOF
Set when data is written to the transmit buffer while the transmit buffer is full.
11 BUSHOLD
Set when the bus becomes held by the I
10 BUSERR
Set when a bus error is detected. The bus error is resolved automatically, but the current transfer is aborted.
9 ARBLOST
Set when arbitration is lost.
8 MSTOP
Set when a STOP condition has been successfully transmitted. If arbitration is lost during the transmission of the STOP
condition, then the MSTOP interrupt flag is not set.
7 NACK
Set when a NACK has been received.
6 ACK
Set when an ACK has been received.
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Reset Access Description
To ensure compatibility with future devices, always write bits to 0. More information in
tions
0 R Clock Low Error Interrupt Flag
0 R Receive Buffer Full Interrupt Flag
0 R Slave STOP Condition Interrupt Flag
0 R Clock Low Timeout Interrupt Flag
0 R Bus Idle Timeout Interrupt Flag
0 R Receive Buffer Underflow Interrupt Flag
0 R Transmit Buffer Overflow Interrupt Flag
0 R Bus Held Interrupt Flag
2
C module.
0 R Bus Error Interrupt Flag
0 R Arbitration Lost Interrupt Flag
0 R Master STOP Condition Interrupt Flag
0 R Not Acknowledge Received Interrupt Flag
0 R Acknowledge Received Interrupt Flag
I2C - Inter-Integrated Circuit Interface
Bit Position
Reference Manual
1.2 Conven-
Rev. 1.1 | 515