SDI Technologies SDIO Card Tuple Version, Sdio Card Metaformat, Tuples Supported by Sdio Cards

Page 61

©Copyright 2000-2007 SD Card Association

SDIO Simplified Specification Version 2.00

16.4Tuple Version

With the introduction of SDIO Specification Version 1.10, a different format for the tuple information is possible based on the changes made by each specification revision. These changes could be added fields in a tuple or entirely new tuples. In order to maintain backward compatibility, new data fields are added after existing fields in order to maximize backward compatibility. It is the responsibility of the host program that is scanning the tuple chain (sometimes called “walking the tuples”) to first determine the SDIO specification version that the card was designed to. The program shall be designed to anticipate that SDIO cards will be encountered that are built to a later version of the specification. This requires the program to ignore the additional data existing in SDIO cards built to a later specification. Specifically, the program shall first read the SDIO specification version that the card was designed to meet from the SDIOx field in the CCCR area. If the version is less than or equal to the version of the tuple scan program, then the program shall know and properly decode all tuple information. If the card version is greater than the scan program’s version, the scan program may need to ignore additional information fields or tuples. The unknown tuples can be ignored by simply skipping those tuples with unrecognized codes. Skipping is accomplished by using the TPL_LINK field (always the second byte) to jump over the unknown tuple. In a similar manner, the additional data fields in tuples should be ignored using the link field. For example, if a scan program is expecting 0x15 bytes of data and the TPL_LINK field indicates a size of 0x19 bytes, the scan program should ignore and skip over the last 4 bytes of data.

16.5SDIO Card Metaformat

Unlike the PCMCIA card, the SDIO card has multiple CIS areas. There is a common CIS for the entire card and a CIS assigned to each function. Because of the multiple CIS areas, the SDIO card does not need to support the CISTPL_LONGLINK_MFC tuple or the CISTPL_LINKTARGET as described in section 2.3.6 of the PCMCIA spec. Table 16-2 lists the tuple codes supported by SDIO cards. The type field indicates if a tuple is Optional (O), Mandatory (M), Recommended (R), or not applicable (n/a) for the common (function 0) tuple and for each function (1-7) supported by the card. For more details on each tuple, see the PCMCIA metaformat specification section referenced.

Code

Name

Description

PCMCIA

Type

Type Function

 

 

 

Reference

Common

 

0x00

CISTPL_NULL

Null tuple

3.1.9

O

O

0x10

CISTPL_CHECKSUM

Checksum control

3.1.1

R

R

0x15

CISTPL_VERS_1

Level 1

3.2.10

O

O

 

 

version/product-information

 

 

 

0x16

CISTPL_ALTSTR

The Alternate Language String

3.2.1

O

O

 

 

Tuple

 

 

 

0x20

CISTPL_MANFID

Manufacturer Identification

3.2.9

M

O

 

 

String Tuple

 

 

 

0x21

CISTPL_FUNCID

Function Identification Tuple

3.2.7

n/a

M

0x22

CISTPL_FUNCE

Function Extensions

3.2.6

n/a

M

0x80-

 

Vendor Unique Tuples

None

O

O

0x8F

 

 

 

 

 

0x91

CISTPL_SDIO_STD

Additional information for

6.1.2

n/a

M1:Standard

 

 

functions built to support

 

 

SDIO Function

 

 

application specifications for

 

 

O1:non-Standard

 

 

standard SDIO functions.

 

 

SDIO Function

0x92

CISTPL_SDIO_EXT

Reserved for future use with

6.1.3

n/a

n/a

 

 

SDIO devices.

 

 

 

0xFF

CISTPL_END

The End-of-chain Tuple

3.1.2

M

M

Table 16-2 Tuples Supported by SDIO Cards

52

Page 60 Page 62
Image 61
Page 60 Page 62
Contents SD Specifications Part E1 Sdio Simplified Specification Changes compared to previous issue Sdio Simplified Specification VersionDate 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 General Description Sdio FeaturesPrimary Reference Document Standard Sdio FunctionsSdio Card Types Sdio Signaling DefinitionSdio Card modes Sdio Host ModesSignal connection to two 4-bit Sdio cards Signal PinsSdio Card Initialization ResetDifferences 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 VDD Voltage Window Position Iosendopcond Command CMD5OCR Values for CMD5 OCR bitIosendopcond Response R4 Response R4 in SD modeRecommendations for RCA after Reset Acceptable Commands after InitializationSpecial Initialization considerations for Combo Cards Re-initialize both I/O and MemoryRe-Initialization Flow for Memory controller Re-Initialization Flow for I/O ControllerEnabling CRC in SPI Combo Card Sdio Command List Differences with SD Memory SpecificationUnsupported SD Memory Commands Modified R6 Response Reset for SdioBus Width Timings Card Detect ResistorCombo Card 4-bit Control Card Detect Resistor StatesData Transfer Abort Data Transfer Block SizesChanges to SD Memory Fixed Registers Read AbortCID Register OCR RegisterCSD Register RCA RegisterClear Sdio Status Register StructureBit Identifier Type Value Description Iorwdirect Command CMD52 New I/O Read/Write CommandsIllegalcommand ComcrcerrorIorwdirect Response R5 1 CMD52 Response SD modesIdentifier Type Value Description Clear Condition DIS=DisabledCMD=DAT lines free TRN=TransferIorw Extended command Op Code Definition Iorwextended Command CMD53OP code Command operation CRC1 CMD53 Data Transfer Format Byte Count ValuesSdio Card Internal Operation Register Access TimeOverview InterruptsRead Wait Suspend/ResumeCMD52 During Data Transfer Sdio Fixed Internal MapCard Common Control Registers Cccr Common I/O Area CIAType Card Common Control Registers CccrCCCR/SDIO IOE3To abort transfers to/from memory Scsi 4BLS Transaction of function 0 CIA Empc Cccr bit DefinitionsAddress Function Basic Registers FBRFunction Basic Information Registers FBR Field TypeFBR bit and field definitions Sdio Simplified Specification Version Field TypeCard Information Structure CIS Setting Block Size with CMD53Multiple Function Sdio Cards Card Information Structure CIS and reserved area of CIAState Diagram for Bus State Machine Bus State DiagramEmbedded I/O Code Storage Area CSA CSA AccessCSA Data Format Interrupt Timing Sdio InterruptsInterrupt Clear Timing Terminated Data Transfer Interrupt CycleSdio Suspend/Resume Operation Sdio Read Wait Operation Power Control Overview Power ControlPower Control support for Sdio Cards Master Power ControlPower Selection Power Control Support for the Sdio HostHigh-Power Tuples Reference Tuples by Master Power Control and Power SelectPower Control Operation Sdio High-Speed Mode High-Speed ModeSwitching Bus Speed Mode in a Combo Card Sdio Physical Properties Sdio PowerSdio Simplified Specification Version Inrush Current Limiting CIS Reference Document CIS FormatsBasic Tuple Format and Tuple Chain Structure Byte Order Within TuplesSdio Card Metaformat Tuple VersionTuples Supported by Sdio Cards Code Name DescriptionSdio Specific Extensions Cistplmanfid Manufacturer Identification String TupleCistplmanfid Manufacturer Identification Tuple Cistplfuncid Function Identification TupleCistplfunce Tuple General Structure Cistplfunce Function Extension TupleCistplfunce Tuple for Function 0 common Tplfidfunction Tuple for Function 0 commonTplfidfunction Tuple for Function Cistplfunce Tuple for FunctionByte Sdio Simplified Specification Version 10 Tplfefunctioninfo Definition Tplfidfunction Field Descriptions for Functions11 Tplfecsaproperty Definition Bit Name12 Cistplsdiostd Tuple Reserved for Sdio Cards Cistplsdiostd Function is a Standard Sdio FunctionCistplsdioext Tuple Reserved for Sdio Cards 13 Cistplsdioext Tuple Reserved for Sdio CardsTable A-14 SD Mode Command List SD and SPI Command ListNormative Sdmem Sdio Table A-15 SPI Mode Command ListNormative References Appendix BAbbreviations and Terms Appendix CLOW, High Informative
Top Page Image Contents