Table of Contents
Advertisement
Section number
22.1
Chip specific serial communications interface............................................................................................................. 395
22.2
Introduction...................................................................................................................................................................396
22.2.1
Features.......................................................................................................................................................... 396
22.2.2
Modes of operation........................................................................................................................................ 396
22.2.3
Block diagram................................................................................................................................................ 397
22.3
SCI signal descriptions................................................................................................................................................. 399
22.3.1
Detailed signal descriptions........................................................................................................................... 399
22.4
Register definition.........................................................................................................................................................399
22.4.1
SCI Baud Rate Register: High (SCIx_BDH)................................................................................................. 400
22.4.2
SCI Baud Rate Register: Low (SCIx_BDL).................................................................................................. 401
22.4.3
SCI Control Register 1 (SCIx_C1).................................................................................................................401
22.4.4
SCI Control Register 2 (SCIx_C2).................................................................................................................403
22.4.5
SCI Status Register 1 (SCIx_S1)................................................................................................................... 404
22.4.6
SCI Status Register 2 (SCIx_S2)................................................................................................................... 406
22.4.7
SCI Control Register 3 (SCIx_C3).................................................................................................................407
22.4.8
SCI Data Register (SCIx_D).......................................................................................................................... 409
22.5
Functional description...................................................................................................................................................409
22.5.1
Baud rate generation...................................................................................................................................... 410
22.5.2
Transmitter functional description................................................................................................................. 410
22.5.2.1
22.5.3
Receiver functional description..................................................................................................................... 412
22.5.3.1
22.5.3.2
22.5.4
Interrupts and status flags.............................................................................................................................. 415
22.5.5
Baud rate tolerance.........................................................................................................................................416
22.5.5.1
22.5.5.2
24
Chapter 22
Serial Communications Interface (SCI)
Send break and queued idle....................................................................................................... 411
Data sampling technique............................................................................................................ 413
Receiver wake-up operation.......................................................................................................414
Slow data tolerance.................................................................................................................... 416
Fast data tolerance......................................................................................................................418
MC9S08SU16 Reference Manual, Rev. 5, 4/2017
Title
Page
NXP Semiconductors
Advertisement
Table of Contents
