21.4.13 I2C Status register 2 (I2C_S2)Address: 18B0h base + Ch offset = 18BChBit 7 6 5 4 3 2 1 0Read 0 0 0 0 0 0 ERROR EMPTYWrite w1cReset 0 0 0 0 0 0 0 1I2C_S2 field descriptionsField Description7ReservedThis field is reserved.This read-only field is reserved and always has the value 0.6ReservedThis field is reserved.This read-only field is reserved and always has the value 0.5ReservedThis field is reserved.This read-only field is reserved and always has the value 0.4ReservedThis field is reserved.This read-only field is reserved and always has the value 0.3ReservedThis field is reserved.This read-only field is reserved and always has the value 0.2ReservedThis field is reserved.This read-only field is reserved and always has the value 0.1ERRORError flagIndicates if there are read or write errors with the Tx and Rx buffers.0 The buffer is not full and all write/read operations have no errors.1 There are 3 or more write/read errors during the data transfer phase (when the Empty flag is not setand the buffer is busy).0EMPTYEmpty flagIndicates if the Tx or Rx buffer is empty.0 Tx or Rx buffer is not empty and cannot be written to, that is new data cannot be loaded into thebuffer.1 Tx or Rx buffer is empty and can be written to, that is new data can be loaded into the buffer.21.5 Functional descriptionThis section provides a comprehensive functional description of the I2C module.Functional descriptionMC9S08SU16 Reference Manual, Rev. 5, 4/2017376 NXP Semiconductors
