20.1. DVDINITIAL/LOGO ABBREVIATIONSA A0~UPACLKAD0~UPADATAALEAMUTEAREQARFASIASOASYNCADDRESSAUDIO CLOCKADDRESS BUSAUDIO PES PACKET DATAADDRESS LATCH ENABLEAUDIO MUTEAUDIO PES PACKET REQUESTAUDIO RFSERVO AMP INVERTED INPUTSERVO AMP OUTPUTAUDIO WORD DISTINCTION SYNCB BCKBCKINBDOBLKCKBOTTOMBYPBYTCKBIT CLOCK (PCM)BIT CLOCK INPUTBLACK DROP OUTSUB CODE BLOCK CLOCKCAP. FOR BOTTOM HOLDBYPATHBYTE CLOCKC CAVCBDOCDCDSCKCDSRDATACDRFCDVCHNDATACKSLCLVCOFTRCPACPCSCPDTCPUADRCPUADTCPUIRQCPRDCPWRCSCSYNCINCSYNCOUTCONSTANT ANGULAR VELOCITYCAP. BLACK DROP OUTCOMPACT DISCCD SERIAL DATA CLOCKCD SERIAL DATACD RF (EFM) SIGNALCOMPACT DISC-VIDEOCHANNEL DATASYSTEM CLOCK SELECTCONSTANT LINEAR VELOCITYCAP. OFF TRACKCPU ADDRESSCPU CHIP SELECTCPU DATACPU ADDRESS LATCHCPU ADDRESS DATA BUSCPU INTERRUPT REQUESTCPU READ ENABLECPU WRITE ENABLECHIP SELECTCOMPOSITE SYNC INCOMPOSITE SYNC OUTD DACCKDEEMPDEMPHDIG0~UPDINDMSRCKDMUTEDODOUT0~UPDRFDRPOUTDREQDRESPDSCDSLFDVDD/A CONVERTER CLOCKDEEMPHASIS BIT ON/OFFDEEMPHASIS SWITCHINGFL DIGIT OUTPUTDATA INPUTDM SERIAL DATA READ CLOCKDIGITAL MUTE CONTROLDROP OUTDATA OUTPUTDATA SLICE RF (BIAS)DROP OUT SIGNALDATA REQUESTDATA RESPONSEDIGITAL SERVO CONTROLLERDATA SLICE LOOP FILTERDIGITAL VIDEO DISCINITIAL/LOGO ABBREVIATIONSE ECECRENCSELETMCLKETSCLKERROR TORQUE CONTROLERROR TORQUE CONTROLREFERENCEENCODER SELECTEXTERNAL M CLOCK (81MHz/40.5MHz)EXTERNAL S CLOCK (54MHz)F FBALFCLKFEFFIFEOFGFSCFSCKFOCUS BALANCEFRAME CLOCKFOCUS ERRORFOCUS ERROR AMP INVERTED INPUTFOCUS ERROR AMP OUTPUTFREQUENCY GENERATORFREQUENCY SUB CARRIERFS (384 OVER SAMPLING) CLOCKG GND COMMON GROUNDING (EARTH)H HA0~UPHD0~UPHINTHRXWHOST ADDRESSHOST DATAHOST INTERRUPTHOST READ/WRITEI IECOUTIPFRAGIREFISELIEC958 FORMAT DATA OUTPUTINTERPOLATION FLAGI (CURRENT) REFERENCEINTERFACE MODE SELECTL LDONLPCLRCKLASER DIODE CONTROLLASER POWER CONTROLL CH/R CH DISTINCTION CLOCKM MA0~UPMCKMCKIMCLKMDATAMDQ0~UPMDQMMLDMPEGMEMORY ADDRESSMEMORY CLOCKMEMORY CLOCK INPUTMEMORY SERIAL COMMAND CLOCKMEMORY SERIAL COMMAND DATAMEMORY DATA INPUT/OUTPUTMEMORY DATA I/O MASKMEMORY SERIAL COMMAND LOADMOVING PICTURE EXPERTS GROUPO ODCOFTROSCIOSCOOSDOPTICAL DISC CONTROLLEROFF TRACKINGOSCILLATOR INPUTOSCILLATOR OUTPUTON SCREEN DISPLAYP P1~UPPCDPCKPDVDPEAKPLLCLKPLLOKPWMCTLPWMDAPWMOA, BPORTCD TRACKING PHASE DIFFERENCEPLL CLOCKDVD TRACKING PHASE DIFFERENCECAP. FOR PEAK HOLDCHANNEL PLL CLOCKPLL LOCKPWM OUTPUT CONTROLPULSE WAVE MOTOR DRIVE APULSE WAVE MOTOR OUT A, B20 Abbreviations61DMR-E75VP