NXP Semiconductors K32 L2A Series, Reference Manual, Page: 721 / 1379

LPI2Cx_SSR field descriptions (continued)
Field Description
9
SDF
STOP Detect Flag
This flag will set when the LPI2C slave detects a STOP condition, provided the LPI2C slave matched the
last address byte.
0 Slave has not detected a STOP condition.
1 Slave has detected a STOP condition.
8
RSF
Repeated Start Flag
This flag will set when the LPI2C slave detects a repeated START condition, provided the LPI2C slave
matched the last address byte. It does not set when the slave first detects a START condition.
0 Slave has not detected a Repeated START condition.
1 Slave has detected a Repeated START condition.
7–4
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
3
TAF
Transmit ACK Flag
This flag is cleared by writing the transmit ACK register.
0 Transmit ACK/NACK is not required.
1 Transmit ACK/NACK is required.
2
AVF
Address Valid Flag
This flag is cleared by reading the address status register. When RXCFG is set, this flag is also cleared by
reading the receive data register.
0 Address Status Register is not valid.
1 Address Status Register is valid.
1
RDF
Receive Data Flag
This flag is cleared by reading the receive data register. When RXCFG is set, this flag is not cleared when
reading the receive data register and AVF is set.
0 Receive Data is not ready.
1 Receive data is ready.
0
TDF
Transmit Data Flag
This flag is cleared by writing the transmit data register. When TXCFG is clear, it is also cleared if a NACK
or Repeated START or STOP condition is detected.
0 Transmit data not requested.
1 Transmit data is requested.
Chapter 27 Low Power Inter-Integrated Circuit (LPI2C)
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 721