MC9S08QG8_09 Datasheet, PDF (17/314 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

Section Number
Title
Page
Chapter 14
Serial Communications Interface (S08SCIV3)
14.1 Introduction ................................................................................................................................... 191
14.1.1 Features ............................................................................................................................194
14.1.2 Modes of Operation .........................................................................................................194
14.1.3 Block Diagram .................................................................................................................195
14.2 Register Definition ........................................................................................................................ 197
14.2.1 SCI Baud Rate Registers (SCIBDH, SCIBHL) ...............................................................197
14.2.2 SCI Control Register 1 (SCIC1) ......................................................................................198
14.2.3 SCI Control Register 2 (SCIC2) ......................................................................................199
14.2.4 SCI Status Register 1 (SCIS1) .........................................................................................200
14.2.5 SCI Status Register 2 (SCIS2) .........................................................................................202
14.2.6 SCI Control Register 3 (SCIC3) ......................................................................................202
14.2.7 SCI Data Register (SCID)................................................................................................203
14.3 Functional Description .................................................................................................................. 204
14.3.1 Baud Rate Generation ......................................................................................................204
14.3.2 Transmitter Functional Description .................................................................................204
14.3.3 Receiver Functional Description .....................................................................................206
14.3.4 Interrupts and Status Flags...............................................................................................207
14.4 Additional SCI Functions.............................................................................................................. 208
14.4.1 8- and 9-Bit Data Modes..................................................................................................208
14.4.2 Stop Mode Operation.......................................................................................................209
14.4.3 Loop Mode.......................................................................................................................209
14.4.4 Single-Wire Operation .....................................................................................................209
Chapter 15
Serial Peripheral Interface (S08SPIV3)
15.1 Introduction ................................................................................................................................... 211
15.1.1 Features ............................................................................................................................213
15.1.2 Block Diagrams ...............................................................................................................213
15.1.3 SPI Baud Rate Generation ...............................................................................................215
15.2 External Signal Description .......................................................................................................... 216
15.2.1 SPSCK — SPI Serial Clock.............................................................................................216
15.2.2 MOSI — Master Data Out, Slave Data In .......................................................................216
15.2.3 MISO — Master Data In, Slave Data Out .......................................................................216
15.2.4 SS — Slave Select ...........................................................................................................216
15.3 Modes of Operation....................................................................................................................... 217
15.3.1 SPI in Stop Modes ...........................................................................................................217
15.4 Register Definition ........................................................................................................................ 217
15.4.1 SPI Control Register 1 (SPIC1) .......................................................................................217
15.4.2 SPI Control Register 2 (SPIC2) .......................................................................................218
15.4.3 SPI Baud Rate Register (SPIBR).....................................................................................219
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
Freescale Semiconductor
15