Dolby Laboratories DP570 3.6 Using the GPI/O Connector

20 Dolby® DP570 Multichannel Audio Tool User’s Manual
Controlling the DP570 Using the GPI/O Connector
3.5.6 Analog Output Master Volume
PressShift,Entertoaccessthemastervolumecontrolfortheoptionalanalogoutputs.
Usethearrowbuttonstoadjustthevolume.PressEntertokeepthecurrentvalueand
returntothepreviousmenu,orpressEsctorestoretheinitialvalue.Anyadjustmentyou
maketakeseffectimmediately.
3.6 Using the GPI/O Connector
YoucanusethisporttoconnecttheDP570toyourstudioconsoleorexistingcontrol
equipment.Astand‐aloneremotecontrolunit,theCat.No.549GPI/OController,isalso
availabletoprovideeasyaccesstothefeaturesoftheGPI/Oport.Byassigningspecific
functionstotheuser‐definablepins,youcancontrolandobtainstatusfromtheDP570.
ManyfunctionsalsoallowyoutoadapttheDP570toyourexistingenvironmentby
definingthetypeandpolarityoftheinputoroutputlogic.
3.6.1 Selecting GPI/O Functions
Table 3 ‐6providesadescriptionforeachfunctionthatcanbeassignedtoGPOpins.Some
functionshaverestrictionsonthepolarityortriggertype.TheActiveStatecolumn
indicatestheDP570statethatcauseslevel‐triggeredpinstobeforcedtothelogiclevel
indicatedinthePolaritycolumnofthetable.Forexample,whentheDP570entersEmulator
BypassmodetheGPOpingoeshigh.WhentheunitisnolongerinBypassmode,thepin
goeslow.
Table 3-6 GPO Functions Available
Function Polarity Trigger Active State Description
VRef Either Either VReferror Nosignalorinvalidsignal.(Checkfor
propertermination.)
Metadatain1 Either Either Metadataerror InvalidsignalwhileunitisinExternal
Metadatamode.
Metadatain2 Either Either Metadataerror InvalidsignalwhileunitisinExternal
Metadatamode.
EmulatorbypassEither Either Bypass IndicatesBypassisactive.
DelayLEDEither Either On Notyetimplemented.
Lt/Rtinput Either Either Enabled IndicatesLt/Rtinputisactive.
Dim/muteaEither Either Enabled IndicatesDimGainsettingisactive.
SurroundEX™Either Either EXon IndicatesSurroundEXisactive.
ProLogic®Either Either ProLogicon IndicatesProLogicisactive.
LspeakermuteaEither Either Mute IndicatesMuteisactive.
RspeakermuteaEither Either Mute IndicatesMuteisactive.
CspeakermuteaEither Either Mute IndicatesMuteisactive.
SWspeakermuteaEither Either Mute IndicatesMuteisactive.
LsspeakermuteaEither Either Mute IndicatesMuteisactive.
RsspeakermuteaEither Either Mute IndicatesMuteisactive.