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4.14MMCArgumentRegister(MMCARGHL)
Registers
Note:DonotmodifytheMMCargumentregister(MMCARGHL)whileitisbeingusedforan
operation.
TheMMCargumentregister(MMCARGHL)specifiestheargumentstobesentwiththecommand
specifiedintheMMCcommandregister(MMCCMD).WritingtoMMCCMDcausestheMMCcontrollerto
sendacommand;therefore,MMCARGHLmustbeconfiguredbeforewritingtoMMCCMD.Thecontentof
MMCARGHLiskeptafterthetransfertotheshiftregister;however,modificationtoMMCARGHLisnot
allowedduringasendingoperation.Fortheformatofacommand,seeFigure31andTable19.
TheMMCargumentregister(MMCARGHL)isshowninFigure32anddescribedinTable20.
Figure32.MMCArgumentRegister(MMCARGHL)
3116
ARGH
R/W-0
150
ARGL
R/W-0
LEGEND:R/W=Read/Write;-n=valueafterreset
Table20.MMCArgumentRegister(MMCARGHL)FieldDescriptions
BitFieldValueDescription
31-16ARGH0-FFFFhArgument,highpart.
15-0ARGL0-FFFFhArgument,lowpart.
MultimediaCard(MMC)/SecureDigital(SD)CardController 54SPRUE30B–September2006
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