SDI Technologies SDIO Card manual CIS Formats, CIS Reference Document, Byte Order Within Tuples

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©Copyright 2000-2007 SD Card Association

SDIO Simplified Specification Version 2.00

16. CIS Formats

16.1CIS Reference Document

The CIS used by SDIO is based directly upon the metaformat specification used by PCMCIA and Compact Flash. The user of this specification is directed to:

PC Card Standard

Volume 4

Metaformat Specification

Published by:

PCMCIA (Personal Computer Memory Card International Association) 2635 North First Street, Suite 209

San Jose, CA 95134 USA

+1-408-433-2273

+1-408-433-9558 (Fax)

16.2Basic Tuple Format and Tuple Chain Structure

The Card Information Structure is one or more chains (or linked lists) of data blocks or tuples. The basic format of tuples is shown in Table 16-1.

Byte

7

6

5

 

4

3

 

2

1

0

0x00

 

 

TPL_

CODE Tuple code: CISTPL_xxx

 

 

0x01

TPL_LINK Offset to next tuple in chain. This is the number of bytes in the tuple body. (n)

0x02..

 

 

 

The tuple body. (n bytes)

 

 

 

(n+2)

 

 

 

 

 

 

 

 

 

 

Table 16-1 Basic Tuple Format

Byte 0 of each tuple contains a tuple code. A tuple code of 0xFF is a special mark indicating that there are no more tuples in the chain. There are 2 tuples with only a tuple code, the CISTPL_NULL and the CISTPL_END (see Table 16-2). These tuples do not have any additional bytes. For all other tuples, byte 1 of each tuple contains a link to the next tuple in the chain. If the link field is 0, then the tuple body is empty. If the link field contains 0xFF, then this tuple is the last tuple in its chain. There are two ways of marking the end of a tuple chain for SDIO cards: a tuple code of 0xFF, or a tuple link of 0xFF. The use of an FFH link value is allowed in SDIO cards, but it is recommended to use the End of Chain tuple. System software shall use the link field to validate tuples. No SDIO card tuple can be longer than 257 bytes: 1 byte TPL_CODE + 1 byte TPL_LINK + FFH byte tuple body (and this 257 byte tuple ends the chain). Some tuples provide a termination or stop byte that marks the end of the tuple. In this case, the tuple can effectively be shorter than the value implied by its link field. However, software shall not scan beyond the implied length of the tuple, even if a termination byte has not been seen.

16.3Byte Order Within Tuples

Within tuples, all multi-byte numeric data shall be recorded in little-endian order. That is, the least-significant byte of a data item shall be stored in the first byte of a given field. Within tuples, all character data shall be stored in the natural order. That is, the first character of the field shall be stored in the first byte of the field. Fixed-length character fields shall be padded with null characters, if necessary.

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Contents SD Specifications Part E1 Sdio Simplified Specification Sdio Simplified Specification Version Changes compared to previous issueDate Version 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 Sdio Features General DescriptionPrimary Reference Document Standard Sdio FunctionsSdio Signaling Definition Sdio Card TypesSdio Card modes Sdio Host ModesSignal Pins Signal connection to two 4-bit Sdio cardsReset Sdio Card InitializationDifferences in I/O 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 Iosendopcond Command CMD5 VDD Voltage Window PositionOCR Values for CMD5 OCR bitResponse R4 in SD mode Iosendopcond Response R4Acceptable Commands after Initialization Recommendations for RCA after ResetSpecial Initialization considerations for Combo Cards Re-initialize both I/O and MemoryRe-Initialization Flow for I/O Controller Re-Initialization Flow for Memory controllerEnabling CRC in SPI Combo Card Differences with SD Memory Specification Sdio Command ListUnsupported SD Memory Commands Reset for Sdio Modified R6 ResponseBus Width Card Detect Resistor TimingsCombo Card 4-bit Control Card Detect Resistor StatesData Transfer Block Sizes Data Transfer AbortChanges to SD Memory Fixed Registers Read AbortOCR Register CID RegisterCSD Register RCA RegisterSdio Status Register Structure ClearBit Identifier Type Value Description New I/O Read/Write Commands Iorwdirect Command CMD52Comcrcerror IllegalcommandIorwdirect Response R5 1 CMD52 Response SD modesDIS=Disabled Identifier Type Value Description Clear ConditionCMD=DAT lines free TRN=TransferIorwextended Command CMD53 Iorw Extended command Op Code DefinitionOP code Command operation CRCByte Count Values 1 CMD53 Data Transfer FormatRegister Access Time Sdio Card Internal OperationOverview InterruptsSuspend/Resume Read WaitCMD52 During Data Transfer Sdio Fixed Internal MapCommon I/O Area CIA Card Common Control Registers CccrCard Common Control Registers Cccr TypeCCCR/SDIO IOE3To abort transfers to/from memory Scsi 4BLS Transaction of function 0 CIA Cccr bit Definitions EmpcFunction Basic Registers FBR AddressFunction Basic Information Registers FBR Field TypeSdio Simplified Specification Version Field Type FBR bit and field definitionsSetting Block Size with CMD53 Card Information Structure CISMultiple Function Sdio Cards Card Information Structure CIS and reserved area of CIABus State Diagram State Diagram for Bus State MachineCSA Access Embedded I/O Code Storage Area CSACSA Data Format Sdio Interrupts Interrupt TimingTerminated Data Transfer Interrupt Cycle Interrupt Clear TimingSdio Suspend/Resume Operation Sdio Read Wait Operation Power Control Power Control OverviewPower Control support for Sdio Cards Master Power ControlPower Control Support for the Sdio Host Power SelectionHigh-Power Tuples Reference Tuples by Master Power Control and Power SelectPower Control Operation High-Speed Mode Sdio High-Speed ModeSwitching Bus Speed Mode in a Combo Card Sdio Power Sdio Physical PropertiesSdio Simplified Specification Version Inrush Current Limiting CIS Formats CIS Reference DocumentBasic Tuple Format and Tuple Chain Structure Byte Order Within TuplesTuple Version Sdio Card MetaformatTuples Supported by Sdio Cards Code Name DescriptionCistplmanfid Manufacturer Identification String Tuple Sdio Specific ExtensionsCistplmanfid Manufacturer Identification Tuple Cistplfuncid Function Identification TupleCistplfunce Function Extension Tuple Cistplfunce Tuple General StructureCistplfunce Tuple for Function 0 common Tplfidfunction Tuple for Function 0 commonCistplfunce Tuple for Function Tplfidfunction Tuple for FunctionByte Sdio Simplified Specification Version Tplfidfunction Field Descriptions for Functions 10 Tplfefunctioninfo Definition11 Tplfecsaproperty Definition Bit NameCistplsdiostd Function is a Standard Sdio Function 12 Cistplsdiostd Tuple Reserved for Sdio CardsCistplsdioext Tuple Reserved for Sdio Cards 13 Cistplsdioext Tuple Reserved for Sdio CardsSD and SPI Command List Table A-14 SD Mode Command ListNormative Table A-15 SPI Mode Command List Sdmem SdioAppendix B Normative ReferencesAppendix C Abbreviations and TermsLOW, High Informative
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