MC9S08RC8 Datasheet, PDF (12/234 Pages) Freescale Semiconductor, Inc – Microcontrollers

Section Number
Title
Page
Chapter 11
Serial Communications Interface (S08SCIV1)
11.1 Introduction ...................................................................................................................................145
Chapter 12
Serial Communications Interface (S08SCIV1)
12.1 Introduction ...................................................................................................................................147
12.1.1 Features .........................................................................................................................147
12.1.2 Modes of Operation ......................................................................................................147
12.1.3 Block Diagram ..............................................................................................................148
12.2 Register Definition ........................................................................................................................150
12.2.1 SCI Baud Rate Registers (SCI1BDH, SCI1BHL) ........................................................150
12.2.2 SCI Control Register 1 (SCI1C1) .................................................................................151
12.2.3 SCI Control Register 2 (SCI1C2) .................................................................................152
12.2.4 SCI Status Register 1 (SCI1S1) ....................................................................................153
12.2.5 SCI Status Register 2 (SCI1S2) ....................................................................................155
12.2.6 SCI Control Register 3 (SCI1C3) .................................................................................155
12.2.7 SCI Data Register (SCI1D) ..........................................................................................156
12.3 Functional Description ..................................................................................................................157
12.3.1 Baud Rate Generation ...................................................................................................157
12.3.2 Transmitter Functional Description ..............................................................................157
12.3.2.1 Send Break and Queued Idle .........................................................................158
12.3.3 Receiver Functional Description ..................................................................................158
12.3.3.1 Data Sampling Technique .............................................................................159
12.3.3.2 Receiver Wakeup Operation .........................................................................159
12.3.4 Interrupts and Status Flags ...........................................................................................160
12.3.5 Additional SCI Functions .............................................................................................161
12.3.5.1 8- and 9-Bit Data Modes ...............................................................................161
12.3.5.2 Stop Mode Operation ....................................................................................161
12.3.5.3 Loop Mode ....................................................................................................161
12.3.5.4 Single-Wire Operation ..................................................................................162
Chapter 13
Serial Peripheral Interface (S08SPIV3)
13.1 Features .........................................................................................................................................164
13.2 Block Diagrams .............................................................................................................................164
13.2.1 SPI System Block Diagram ..........................................................................................164
13.2.2 SPI Module Block Diagram .........................................................................................165
13.2.3 SPI Baud Rate Generation ............................................................................................167
13.3 Functional Description ..................................................................................................................167
13.3.1 SPI Clock Formats ........................................................................................................168
13.3.2 SPI Pin Controls ...........................................................................................................170
13.3.2.1 SPSCK1 — SPI Serial Clock ........................................................................170
13.3.2.2 MOSI1 — Master Data Out, Slave Data In ..................................................170
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
12
Freescale Semiconductor