SDI Technologies SDIO Card manual Card Common Control Registers Cccr, Type, Cccr/Sdio, IOE3, IOR3

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©Copyright 2000-2007 SD Card Association

SDIO Simplified Specification Version 2.00

Address	Register Name	Bit 7	Bit 6	Bit 5	Bit 4	Bit 3	Bit 2	Bit 1			Bit 0
0x00	CCCR/SDIO	SDIO	SDIO	SDIO	SDIO	CCCR	CCCR	CCCR			CCCR
	Revision	bit 3	bit 2	bit 1	bit 0	bit 3	bit 2	bit 1			bit 0
0x01	SD Specification	RFU	RFU	RFU	RFU	SD	SD	SD			SD
	Revision					bit 3	bit 2	bit 1			bit 0
0x02	I/O Enable	IOE7	IOE6	IOE5	IOE4	IOE3	IOE2	IOE1			RFU
0x03	I/O Ready	IOR7	IOR6	IOR5	IOR4	IOR3	IOR2	IOR1			RFU
0x04	Int Enable	IEN7	IEN6	IEN5	IEN4	IEN3	IEN2	IEN1			IENM
0x05	Int Pending	INT7	INT6	INT5	INT4	INT3	INT2	INT1			RFU
0x06	I/O Abort	RFU	RFU	RFU	RFU	RES	AS2	AS1			AS0
0x07	Bus Interface	CD	SCSI	ECSI	RFU	RFU	RFU	Bus			Bus
	Control	Disable						Width 1			Width 0
0x08	Card Capability	4BLS	LSC	E4MI	S4MI	SBS	SRW	SMB			SDC
0x09-	Common CIS		Pointer to	card’s common Card Information Structure (CIS)
0x0B	Pointer
0x0C	Bus Suspend	RFU	RFU	RFU	RFU	RFU	RFU	BR			BS
0x 0D	Function Select	DF	RFU	RFU	RFU	FS3	FS2	FS1			FS0
0x 0E	Exec Flags	EX7	EX6	EX5	EX4	EX3	EX2	EX1			EXM
0x 0F	Ready Flags	RF7	RF6	RF5	RF4	RF3	RF2	RF1			RFM
0x10-	FN0 Block Size			I/O	block size	for Function	0
0x11
0x 12	Power Control		Reserved for Future Use (RFU)					EMPC			SMPC
0x 13	High-Speed	RFU	RFU	RFU	RFU	RFU	RFU	EHS			SHS
0x14-	RFU			Reserved for Future Use (RFU)
0xEF
0xF0-	Reserved for		Area Reserved for Vendor Unique Registers
0xFF	Vendors
	Table 6-1 Card Common Control Registers (CCCR)

Field	Type			Description
CCCRx	R/O		CCCR Format Version number. These 4 bits contain the version of the CCCR and
			FBR format that this card supports. Any change to the CCCR and/or the FBR
			structure shall cause a new version code to be assigned. The codes for the
			CCCR/FBR formats are as follows:
			Value	CCCR/FBR Format Version
			0x00	CCCR/FBR Version 1.00
			0x01	CCCR/FBR Version 1.10
			0x02	CCCR/FBR Version 1.20
			0x03-0x0F	Reserved for Future Use
SDIOx	R/O		SDIO Specification Revision number. These 4 bits contain the version of the SDIO
			Specification that this card supports. The codes for the SDIO Specifications are as
			follows:
			Value	SDIO Specification
			0x00	SDIO Specification Version 1.00
			0x01	SDIO Specification Version 1.10
			0x02	SDIO Specification Version 1.20 (unreleased)
			0x03	SDIO Specification Version 2.00
			0x04-0x0F	Reserved for Future Use

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Contents SD Specifications Part E1 Sdio Simplified Specification Date Version Sdio Simplified Specification VersionChanges compared to previous issue Release of SD Simplified Specification Conventions Used in This Document Table of Contents SPI and SD 1-bit Mode Interrupts 16.2 Table of Tables Table of Figures Primary Reference Document Sdio FeaturesGeneral Description Standard Sdio FunctionsSdio Card modes Sdio Signaling DefinitionSdio Card Types Sdio Host ModesSignal Pins Signal connection to two 4-bit Sdio cardsDifferences in I/O card Initialization ResetSdio Card Initialization Sdio Simplified Specification Version MEM=0 Card initialization flow in SD mode Sdio aware host Illegal Command F8=0 Card initialization flow in SPI mode Sdio aware host OCR Values for CMD5 Iosendopcond Command CMD5VDD Voltage Window Position OCR bitResponse R4 in SD mode Iosendopcond Response R4Special Initialization considerations for Combo Cards Acceptable Commands after InitializationRecommendations for RCA after Reset Re-initialize both I/O and MemoryRe-Initialization Flow for I/O Controller Re-Initialization Flow for Memory controllerEnabling CRC in SPI Combo Card Unsupported SD Memory Commands Differences with SD Memory SpecificationSdio Command List Bus Width Reset for SdioModified R6 Response Combo Card 4-bit Control Card Detect ResistorTimings Card Detect Resistor StatesChanges to SD Memory Fixed Registers Data Transfer Block SizesData Transfer Abort Read AbortCSD Register OCR RegisterCID Register RCA RegisterBit Identifier Type Value Description Sdio Status Register StructureClear New I/O Read/Write Commands Iorwdirect Command CMD52Iorwdirect Response R5 ComcrcerrorIllegalcommand 1 CMD52 Response SD modesCMD=DAT lines free DIS=DisabledIdentifier Type Value Description Clear Condition TRN=TransferOP code Command operation Iorwextended Command CMD53Iorw Extended command Op Code Definition CRCByte Count Values 1 CMD53 Data Transfer FormatOverview Register Access TimeSdio Card Internal Operation InterruptsCMD52 During Data Transfer Suspend/ResumeRead Wait Sdio Fixed Internal MapCommon I/O Area CIA Card Common Control Registers CccrCCCR/SDIO Card Common Control Registers CccrType IOE3To abort transfers to/from memory Scsi 4BLS Transaction of function 0 CIA Cccr bit Definitions EmpcFunction Basic Information Registers FBR Function Basic Registers FBRAddress Field TypeSdio Simplified Specification Version Field Type FBR bit and field definitionsMultiple Function Sdio Cards Setting Block Size with CMD53Card Information Structure CIS Card Information Structure CIS and reserved area of CIABus State Diagram State Diagram for Bus State MachineCSA Data Format CSA AccessEmbedded I/O Code Storage Area CSA Sdio Interrupts Interrupt TimingTerminated Data Transfer Interrupt Cycle Interrupt Clear TimingSdio Suspend/Resume Operation Sdio Read Wait Operation Power Control support for Sdio Cards Power ControlPower Control Overview Master Power ControlHigh-Power Tuples Power Control Support for the Sdio HostPower Selection Reference Tuples by Master Power Control and Power SelectPower Control Operation Switching Bus Speed Mode in a Combo Card High-Speed ModeSdio High-Speed Mode Sdio Power Sdio Physical PropertiesSdio Simplified Specification Version Inrush Current Limiting Basic Tuple Format and Tuple Chain Structure CIS FormatsCIS Reference Document Byte Order Within TuplesTuples Supported by Sdio Cards Tuple VersionSdio Card Metaformat Code Name DescriptionCistplmanfid Manufacturer Identification Tuple Cistplmanfid Manufacturer Identification String TupleSdio Specific Extensions Cistplfuncid Function Identification TupleCistplfunce Tuple for Function 0 common Cistplfunce Function Extension TupleCistplfunce Tuple General Structure Tplfidfunction Tuple for Function 0 commonByte Cistplfunce Tuple for FunctionTplfidfunction Tuple for Function Sdio Simplified Specification Version 11 Tplfecsaproperty Definition Tplfidfunction Field Descriptions for Functions10 Tplfefunctioninfo Definition Bit NameCistplsdioext Tuple Reserved for Sdio Cards Cistplsdiostd Function is a Standard Sdio Function12 Cistplsdiostd Tuple Reserved for Sdio Cards 13 Cistplsdioext Tuple Reserved for Sdio CardsNormative SD and SPI Command ListTable A-14 SD Mode Command List Table A-15 SPI Mode Command List Sdmem SdioAppendix B Normative ReferencesAppendix C Abbreviations and TermsLOW, High Informative