MC9S08AW60 Datasheet, PDF (14/320 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 11
Serial Communications Interface (S08SCIV2)
11.1 Introduction ...................................................................................................................................179
11.1.1 Features .........................................................................................................................181
11.1.2 Modes of Operation ......................................................................................................181
11.1.3 Block Diagram ..............................................................................................................182
11.2 Register Definition ........................................................................................................................184
11.2.1 SCI Baud Rate Registers (SCIxBDH, SCIxBHL) ........................................................184
11.2.2 SCI Control Register 1 (SCIxC1) .................................................................................185
11.2.3 SCI Control Register 2 (SCIxC2) .................................................................................186
11.2.4 SCI Status Register 1 (SCIxS1) ....................................................................................187
11.2.5 SCI Status Register 2 (SCIxS2) ....................................................................................189
11.2.6 SCI Control Register 3 (SCIxC3) .................................................................................189
11.2.7 SCI Data Register (SCIxD) ..........................................................................................190
11.3 Functional Description ..................................................................................................................191
11.3.1 Baud Rate Generation ...................................................................................................191
11.3.2 Transmitter Functional Description ..............................................................................191
11.3.3 Receiver Functional Description ..................................................................................193
11.3.4 Interrupts and Status Flags ...........................................................................................194
11.4 Additional SCI Functions ..............................................................................................................195
11.4.1 8- and 9-Bit Data Modes ..............................................................................................195
11.4.2 Stop Mode Operation ...................................................................................................196
11.4.3 Loop Mode ...................................................................................................................196
11.4.4 Single-Wire Operation ..................................................................................................196
Chapter 12
Serial Peripheral Interface (S08SPIV3)
12.1 Introduction ...................................................................................................................................199
12.1.1 Features .........................................................................................................................200
12.1.2 Block Diagrams ............................................................................................................200
12.1.3 SPI Baud Rate Generation ............................................................................................202
12.2 External Signal Description ..........................................................................................................203
12.2.1 SPSCK — SPI Serial Clock .........................................................................................203
12.2.2 MOSI — Master Data Out, Slave Data In ....................................................................203
12.2.3 MISO — Master Data In, Slave Data Out ....................................................................203
12.2.4 SS — Slave Select ........................................................................................................203
12.3 Register Definition ........................................................................................................................204
12.3.1 SPI Control Register 1 (SPI1C1) ..................................................................................204
12.3.2 SPI Control Register 2 (SPI1C2) ..................................................................................205
12.3.3 SPI Baud Rate Register (SPI1BR) ...............................................................................206
12.3.4 SPI Status Register (SPI1S) ..........................................................................................207
12.3.5 SPI Data Register (SPI1D) ...........................................................................................208
12.4 Functional Description ..................................................................................................................208
12.4.1 SPI Clock Formats ........................................................................................................209
12.4.2 SPI Interrupts ................................................................................................................211
MC9S08AW60 Data Sheet, Rev.1.0
14
Freescale Semiconductor