ALF=ALF_0, NDF=NDF_0, SDF=SDF_0, TDF=TDF_0, FEF=FEF_0, MBF=MBF_0, PLTF=PLTF_0, RDF=RDF_0, DMF=DMF_0, BBF=BBF_0, EPF=EPF_0
Master Status Register
| TDF | Transmit Data Flag 0 (TDF_0): Transmit data is not requested 1 (TDF_1): Transmit data is requested |
| RDF | Receive Data Flag 0 (RDF_0): Receive Data is not ready 1 (RDF_1): Receive data is ready |
| EPF | End Packet Flag 0 (EPF_0): Master has not generated a STOP or Repeated START condition 1 (EPF_1): Master has generated a STOP or Repeated START condition |
| SDF | STOP Detect Flag 0 (SDF_0): Master has not generated a STOP condition 1 (SDF_1): Master has generated a STOP condition |
| NDF | NACK Detect Flag 0 (NDF_0): Unexpected NACK was not detected 1 (NDF_1): Unexpected NACK was detected |
| ALF | Arbitration Lost Flag 0 (ALF_0): Master has not lost arbitration 1 (ALF_1): Master has lost arbitration |
| FEF | FIFO Error Flag 0 (FEF_0): No error 1 (FEF_1): Master sending or receiving data without a START condition |
| PLTF | Pin Low Timeout Flag 0 (PLTF_0): Pin low timeout has not occurred or is disabled 1 (PLTF_1): Pin low timeout has occurred |
| DMF | Data Match Flag 0 (DMF_0): Have not received matching data 1 (DMF_1): Have received matching data |
| MBF | Master Busy Flag 0 (MBF_0): I2C Master is idle 1 (MBF_1): I2C Master is busy |
| BBF | Bus Busy Flag 0 (BBF_0): I2C Bus is idle 1 (BBF_1): I2C Bus is busy |