User's Manual

Table Of Contents
3.8.6LockBlock
Tag-itProtocol
www.ti.com
TheLockBlockrequestwrite-protectsonememoryblockoftheaddressedtag(s).Acorruptedresponseor
lackofresponsedoesnotnecessarilyindicateafailuretoperformthelockoperation.Additionally,multiple
tagsmayprocessanonaddressedrequest.
Tolockablock(writeprotectablock),theusershould:
ClickthebuttonforLockBlockintheCommandswindow.
ClickontheAddressflag,ifdesired,intheTagFlagswindow.
EntertwohexdigitsforblocknumberintheBlockNumberfieldoftheTagDatawindow.
Executethecommand.
RequestPacket:
010B000304180040030000(allbytesarecontinuous;spacesareaddedforclarity)
FieldContentsComments
SOF01Startofframe
PacketLength0BPacketlength=11bytes
Constant00
BeginDataPayload0304Startofdatapayload
FirmwareCommand18Requestmode
00RequestfromreadertotagFigure3-8
CommandCode40LockblockFigure3-8
BlockNumber03No.+1=4Figure3-8
EOF0000Endofframe
EVMSoftware 84SLOU192CNovember2006RevisedDecember2008
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