Panasonic KX-HCM110A

[SpeakerSound]
1.TheADPCMsounddataaresentfromthePCand,afterdata
decompressionintheADPCMblockoftheASIC(101),thedataare
transferredasthesounddataof64kbpstothePCMCodec(IC601)
throughtheSerialI/F.
2.Afterthe lawtolinearconversion,amplificationandDAconversion,
theyareoutputtopin2ofthespeakerjack(CN604)assoundoutput
signalinthePCMCodec(IC601).
13.5.LANBLOCK
ComposedoftheIC103(CPU),theIC202(ETHER-PHY),theT601(Transformer)andtheCN605(RJ45).
TheT605(Transformer)obtainsisolationbetweentheSetandtheEthernet.
TheIC103(CPU)andtheIC202(ETHER-PHY)areconnectedbyasignalcalledMIIBusanditmakes
Ethernetdatasendingandreceivingpossible.
Sending
TheelectricalsignalsentfromtheIC103isconvertedtoEthernetdataattheIC202andsentfromthe
CN605throughtheT601.
Receiving
TheEthernetdatareceivedfromtheCN605isconvertedtoelectricaldataattheIC202andreceivedto
theIC103.
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