Revision HistoryTable of ContentsList of FiguresList of TablesPrefaceSection 1 Introduction1.1 Overview1.2 Features1.3 Modes of OperationSection 2 External Signal Description2.1 Overview2.2 Detailed Signal Description2.2.1 MOSI2.2.2 MISO2.2.3 SS2.2.4 SCKSection 3 Memory Map/Register Definition3.1 Register Descriptions3.1.1 SPI Control Register 13.1.2 SPI Control Register 23.1.3 SPI Baud Rate Register3.1.4 SPI Status Register3.1.5 SPI Data RegisterSection 4 Functional Description4.1 General4.2 Master Mode4.3 Slave Mode4.4 Transmission Formats4.4.1 Clock Phase and Polarity Controls4.4.2 CPHA = 0 Transfer Format4.4.3 CPHA = 1 Transfer Format4.5 SPI Baud Rate Generation4.6 Special Features4.6.1 SS Output4.6.2 Bidirectional Mode (MOMI or SISO)4.7 Error Conditions4.7.1 Mode Fault Error4.8 Low Power Mode Options4.8.1 SPI in Run Mode4.8.2 SPI in Wait Mode4.8.3 SPI in Stop Mode4.8.4 Reset4.8.5 InterruptsSection 5 Initialization/Application InformationIndexBlock Guide End SheetMotorola reserves the right to make changes without further notice to any products herein. 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Motorola, Inc. is an EqualOpportunity/Affirmative Action Employer.DOCUMENT NUMBERS12SPIV3/D1©Motorola, Inc., 2001SPIBlock GuideV03.06Original Release Date: 21 JAN 2000Revised: 04 FEB 2003Motorola, Inc.SPI Block Guide V03.062Revision HistoryVersionNumberRevisionDateEffectiveDateAuthor Description of Changes0.121 Jan2000This spec is based on the Barracuda, with modifications to changethe module from 16 bit to 8 bit.0.21 Mar2000Template of this document changed as per Version 2.0 SRS.0.314 Jun2000- Signal names are changed as per the SRS2.0- SPE bit remains set in the Mode Fault error case- Slave SPI does not support div2 and div4 cases0.431 Aug2000- Electrical spec added- SPIF flag is cleared by a read access to the status registerfollowed by read access to the data register.0.513 Mar200113 Mar2001- Incorporated feedback regarding format of the document.0.613 Mar200119 Mar2001- Incorporated changes as a result of internal discussions andclarification of SRS20.76 July20016 July2001- Line is added with respect to SPTEF bit to make spec more clear.- Landscape pages have been removed from pdf.- Extra blank pages have been removed.0.819 July200119 July2001- Line is added with respect to SPE bit to make spec more clear.V02.0226 July2001-Added Document Names-variable definitions and Names have been hidden-Changed chapter 3.9 Errata to NoteV03.0027 Sep200127 Sep2001Based on the BUG version V02.02 an improved version wascreated. The specification counter has to be increased, becausethere is a difference in the behavior in SPI master mode from thisspecification to its predecessor. In SPI Master Mode, the change ofa config bit during a transmission in progress, will abort thetransmission and force the SPI into idle state.V03.0114 Dec200114 Dec2001Section 4.4.2- Changed description of transfer format CPHA=0 in slave modeSection 4.4.3- Changed description of transfer format CPHA=1 in master mode- Changed Figure 4-3Section 4.6.2- Added note for mode fault in bidirectional master modeSection 4.7.1- Changed description of bidirectional mode with mode faultSection 4.8.3- Changed last sentence in stop mode descriptionV03.0207 Jan200207 Jan2002Section 3.3.4- Changed description of SPTEF flagSection 4.1- Changed description of SPTEF flag and SPIDR behaviourSPI Block Guide V03.063V03.0309 Jan200209 JAN2002Transferred document to SRS3.0 formatV03.0418 Mar200218 Mar2002Updated Document Format.V03.0503 Apr200203 Apr2002Minor Document cleanup.V03.0604 Feb200304 Feb2003Minor Document cleanup.VersionNumberRevisionDateEffectiveDateAuthor Description of ChangesSPI Block Guide V03.064SPI Block Guide V03.065Table of ContentsSection 1 Introduction1.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141.3 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Section 2 External Signal Description2.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152.2 Detailed Signal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152.2.1 MOSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152.2.2 MISO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152.2.3 SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152.2.4 SCK . . . . . . . . . . . . . .
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