Datasheet

Section number Title Page
14.6 Initialization/application information.............................................................................................................................402
Chapter 15
Serial communications interface (SCI)
15.1 Introduction.....................................................................................................................................................................403
15.1.1 Features............................................................................................................................................................403
15.1.2 Modes of operation..........................................................................................................................................403
15.1.3 Block diagram..................................................................................................................................................404
15.2 Register definition...........................................................................................................................................................405
15.2.1 SCI Baud Rate Register: High (SCIx_BDH)...................................................................................................406
15.2.2 SCI Baud Rate Register: Low (SCIx_BDL)....................................................................................................407
15.2.3 SCI Control Register 1 (SCIx_C1)...................................................................................................................408
15.2.4 SCI Control Register 2 (SCIx_C2)...................................................................................................................409
15.2.5 SCI Status Register 1 (SCIx_S1).....................................................................................................................410
15.2.6 SCI Status Register 2 (SCIx_S2).....................................................................................................................412
15.2.7 SCI Control Register 3 (SCIx_C3)...................................................................................................................414
15.2.8 SCI Data Register (SCIx_D)............................................................................................................................415
15.3 Functional description.....................................................................................................................................................416
15.3.1 Baud rate generation........................................................................................................................................416
15.3.2 Transmitter functional description...................................................................................................................417
15.3.2.1 Send break and queued idle...........................................................................................................417
15.3.3 Receiver functional description.......................................................................................................................418
15.3.3.1 Data sampling technique................................................................................................................419
15.3.3.2 Receiver wakeup operation............................................................................................................420
15.3.4 Interrupts and status flags................................................................................................................................421
15.3.5 Additional SCI functions.................................................................................................................................422
15.3.5.1 8- and 9-bit data modes..................................................................................................................422
15.3.5.2 Stop mode operation......................................................................................................................423
15.3.5.3 Loop mode.....................................................................................................................................423
15.3.5.4 Single-wire operation.....................................................................................................................423
MC9S08PA60 Reference Manual, Rev. 1, 9/2012
Freescale Semiconductor, Inc. 19