Data Sheet

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ETHERIO24TCPDATASHEET
SerialCommunicationsModes(ViaI/OPorts)
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SerialCommunicationsModesincludeSPIModeandI2CMode.ThePortMode
issetaspartofthePower‐upOptionsintheEtherIO24TCPJavaApplet.
OncetheModeisset,allcommunicationsaredoneusingtheSCommandas
setoutbelow.
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SENDSERIALDATAONPORTA
Command
Sent
ASCII
Code
Bytes Data
Function
SendsoutSerial*dataonPORTA.The
numberofdatabytesissentoutfirst
followedbythedata.Thereturndatawill
automaticallybeclockedinandsentback
inthecommandreply.
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*SerialDatamaybeSPIorI2C,depending
onPortMode
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SA
2+#data
bytes+
data
#data
bytes+
data
Command
Reply
(SPIMode)
ASCII
Code
Bytes Data
SA
2+#data
bytes+
data
Return
data
Command
Reply
(I2CMode)
1
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ASCII
Code
Bytes Data
SA
2+#data
bytes+
data
Data
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1
I2CModeonlyreturnsdataonReadCommands.
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Operation:SendsoutSerialdataonPORTA.ThecommandconsistsofSAwhichtells
thefirmwarethatSerialdatawillbesentonPORTA,thenthenumberofdatabytes
tobesentoutfollowedbythedatabytes.Belowaresomeexamplesofthecommands
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©
2013ElexolPtyLtd Revision1.3
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