Datasheet

Section number Title Page
Chapter 16
8-Bit Serial Peripheral Interface (8-bit SPI)
16.1 Introduction.....................................................................................................................................................................425
16.1.1 Features............................................................................................................................................................425
16.1.2 Modes of Operation.........................................................................................................................................426
16.1.3 Block Diagrams................................................................................................................................................426
16.1.3.1 SPI System Block Diagram............................................................................................................427
16.1.3.2 SPI Module Block Diagram...........................................................................................................427
16.2 External Signal Description............................................................................................................................................428
16.2.1 SPSCK — SPI Serial Clock.............................................................................................................................429
16.2.2 MOSI — Master Data Out, Slave Data In.......................................................................................................429
16.2.3 MISO — Master Data In, Slave Data Out.......................................................................................................429
16.2.4 SS — Slave Select............................................................................................................................................429
16.3 Register Definition..........................................................................................................................................................430
16.3.1 SPI control register 1 (SPIx_C1)......................................................................................................................430
16.3.2 SPI control register 2 (SPIx_C2)......................................................................................................................432
16.3.3 SPI baud rate register (SPIx_BR).....................................................................................................................433
16.3.4 SPI status register (SPIx_S).............................................................................................................................434
16.3.5 SPI data register (SPIx_D)...............................................................................................................................435
16.3.6 SPI match register (SPIx_M)...........................................................................................................................436
16.4 Functional Description....................................................................................................................................................436
16.4.1 General.............................................................................................................................................................436
16.4.2 Master Mode....................................................................................................................................................437
16.4.3 Slave Mode......................................................................................................................................................438
16.4.4 SPI Clock Formats...........................................................................................................................................440
16.4.5 SPI Baud Rate Generation...............................................................................................................................443
16.4.6 Special Features...............................................................................................................................................443
16.4.6.1 SS Output.......................................................................................................................................443
16.4.6.2 Bidirectional Mode (MOMI or SISO)...........................................................................................444
MC9S08PA60 Reference Manual, Rev. 1, 9/2012
20 Freescale Semiconductor, Inc.