User's Manual

Table Of Contents
3.8.3GetBlock
Tag-itProtocol
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TheGetBlockrequestgetsthedatafromonememoryblockoftherespondingtag.Inadditiontothis
data,ablocksecuritystatusbyteisreturned.Thisbyteindicatesthewriteprotectionstatusoftheblock
specified[e.g.,unlocked,(user/factory)locked,etc.].
Togetblocks,theusershould:
ClickthebuttonforGetBlockintheCommandswindow.
ClickontheAddressflag,ifdesired,intheTagFlagswindow.
EntertwohexdigitsforblocksizeintheBlockSizefieldoftheTagDatawindow.
EntertwohexdigitsforblocknumberintheBlockNumberfieldoftheTagDatawindow.
Executethecommand.
RequestPacket:
010B000304180008030000(allbytesarecontinuous;spacesareaddedforclarity)
FieldContentsComments
SOF01Startofframe
PacketLength0BPacketlength=11bytes
Constant00
BeginDataPayload0304Startofdatapayload
FirmwareCmd18Requestmode
00Requestfromreadertotag
CommandCode08GetBlock,nonaddressed=08
addressed=0A
BlockNumber03No.+1=4
EOF0000Endofframe
EVMSoftware 78SLOU192CNovember2006RevisedDecember2008
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