DS3146/DS3146/DS31412 6-/8-/12-Channel DS3/E3 Framers
3. MAIN FEATURES
General
Cꢀ(LPIUOSIn/tNeErfGac/CesLKca)norbBeinEaitrhye(rDDAuTa/lC-RLaKi/lLCV)
CꢀSupport Gapped 52MHz Clock Rates
CꢀOptional B3ZS/HDB3 Encoder and Decoder
CꢀCAllloocwk,aDGaltuae, laensds CInotenrtfraocleStigonOatlshecraDnebveicIensverted to
CꢀDReecteecivtieonColofcLkoss-of-Transmit Clock and Loss-of-
CꢀMPearnfouraml oarncAeutMomonaittoicriOngneC-Souenctoenrsd Update of
CꢀMEaocdheFWrahmenerNcoatnBbeeinPguUt sInetdo Low-Power Standby
HDLC Controller
CꢀDMeinsiimgnael dHotostHParnodcleesMsourltIinptleerLveAnPtDionMessages with
Cꢀ2E5n6o-uBgyhtetoRHecaenidvleeathnedTThrarenesmDiSt 3FIPFMODs LarMeeLsasraggees
(Path ID, Idle Signal ID, and Test Signal ID) that are
Sent and Received Once per Second
CꢀSHtaunffdinlegs/DAellstthueffiNngo,rmCaRlCLaaynedrA2bToartsks Such As Zero
Generation/Checking, Flag Generation/
Detection, and Byte Alignment
CꢀTPrraongsrammitmaanbdleReHcigehiveanFdIFLOows Watermarks for the
CꢀBTeitrPmainriatytemsothdeePaandthOMpatiionnteanllayntchee DSant-aBiLtiinnkEin3 DMSo3deC-
Receive Framer
FEAC Controller
CꢀMDeinsiimgnael dHotostHParnodcleesMsourltIinptleerFveEnAtCionCodewords with
CꢀFanradmGe.7S5y1ncEh3ronization for M23 DS3, C-Bit Parity DS3,
CꢀOptional B3ZS/HDB3 Decoding
CꢀDetects RAI, AIS, and DS3 Idle Signal
CꢀLDientee-cCtsodaendViAoclactuiomnusla(CteVssB),ipEoxlcaersVsiiovleatZioenrsos(B(EPXVZ),),
CꢀRCoedceeiwveorFdEsAaCndASuttoormesatTichaellmy Vinalaid4a-tBesytIencFoIFmOing
CꢀTCroadneswmoitrdF,EOAnCecCaondbeewoCrodnCfigounrteinduotouSsley,ndorOTnweo
F-Bit Errors, M-Bit Errors, FAS Errors, P-Bit Parity
Errors, CP-Bit Parity Errors, and Far-End Block Errors
(FEBE)
Different Codewords Back-to-Back to Send DS3 Line
Loopback Commands
CꢀDSeevteecret LlyoEssrr-oorfe-SdigFnraaml (eLOESve),nOt (uSt-EoFf-)F,rCamhaen(gOeO-oFf-),
CꢀTMeordmeinaantdesOtphteioFnEalAlyCthCehSannnBeiltiinnDES33MCo-dBeit Parity
Frame Alignment (COFA), Receipt of B3ZS/HDB3
Codewords, and DS3 Application ID Status
BERT
CꢀEBi3t,NthaetioHnDaLl CBitC(oSnnt)roislleFro, rawnadrdtheedFtoEAaCStCatounstrRolelegrister
CꢀGenerates and Detects Pseudorandom Patterns 215
1, 220 - 1 (QRSS), 223 - 1, and 231 - 1 as well as
Repetitive Patterns from 1 to 32 Bits in Length
-
Transmit Formatter
CꢀOSunplypoorrtFsuPllaBttearnndwInisdethrtion/Extraction in Either Payload
CꢀfLoarrgLeon2g4-PBeitriEodrrsoWr CitohuonutteHr oAslltoPwrsocTeessstionrgIntotePrvreoncetieond
CꢀGFr.a7m51eEIn3sertion for M23 DS3, C-Bit Parity DS3, and
CꢀOptional B3ZS/HDB3 Encoding
CꢀClear-Channel Formatter Pass-Through Mode
CꢀGenerate RAI, AIS, and DS3 Idle Signals
CꢀAutomatic or Manual FEBE Insertion
CꢀPErartotersrncsafnorbeDiIangsneortsetdicinPuthrpeoGseesne(SraintegdleBBEitRETrrors or
Specific Bit-Error Rates)
CꢀSEuxcpepsosritvAeuZtoemroast,icF-oBriMt Earnruoarsl,InMs-eBrittioEnrroofrsB,PFVAsS, CVs,
Loopback
CꢀDiagnostic Loopback (Transmit to Receive)
CꢀLine Loopback (Receive to Transmit)
CꢀPayload Loopback
Errors, P-Bit Parity Errors, and CP-Bit Parity Errors
CꢀRE3egNisatteior,ntahleBHitD(SLnC)CcaonntbroellSero,uorrcethdefrFoEmACa CCoonnttrroolller
CꢀOAnvyerOridvedrehneiandthBeitTProasnistimonitcFaonrmbeatEtexrteUrsnianlglythe
Microprocessor Interface
CꢀMultiplexed or Nonmultiplexed 8-Bit Processor Port
CꢀIntel and Motorola Bus Compatible
CꢀGlobal Reset-Input Pin
Transmit Overhead Enable (TOHEN) and the Transmit
Overhead Input (TOH). This Feature Enables External
Control Over Unused Overhead Bits for Proprietary
Signaling Applications.
CꢀOptional Common Transmit Clock-Input Pin
CꢀGlobal Interrupt-Output Pin
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