Support User Manuals

Dolby Laboratories DP570 Stereo System User Manual

Open as PDF

of 127

Controlling the DP570 Using the GPI/O Connector

Dolby

®

DP570 Multichannel Audio Tool User’s Manual 21

Table 3‐7providesadescriptionforfunctionsthatcanbeassignedtoGPIpins.Some

functionshaverestrictionsonthepolarityortriggertype.GPIfunctionsthataremutually

exclusivemustbeedge‐triggered.TheActiveStatecolumnindicatestheDP570statethat

resultswhenthepinisforcedtothe

logiclevelindicated,ifitislevel‐triggered.

Bsspeakermute

a

Either Either Mute IndicatesMuteisactive.

SpeakerSelect

a

(Multi,Stereo,Mono)

Either Either Speakerselected Indicateswhichspeakerisselected.

ProgramSelect(1–8) Either Either Enabled Indicateswhichprogramisselected.

PresetSelect(1–32) Either Either Enabled Indicateswhichpresetisselected.

DownmixMode

(Full,Stereo,Mono,

Phant,3‐Stereo)

Either Either Enabled Indicateswhichmodeisselected.

DynamicRange

ControlMode

(Line,RF,Custom)

Either Either Enabled Indicateswhichcompressionmodeis

selected.

ReferenceLevel

a



Either Level 0dB IndicatesMasterVolume=0dB.

a.NotavailableinunitswithouttheCat.No.548AnalogOptionCard.

Table 3-7 GPI 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/mute

a

Either 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mute

a

Either Either Mute IndicatesMuteisactive.

Rspeakermute

a

Either Either Mute IndicatesMuteisactive.

Cspeakermute

a

Either Either Mute IndicatesMuteisactive.

SWspeakermute

a

Either Either Mute IndicatesMuteisactive.

Lsspeakermute

a

Either Either Mute IndicatesMuteisactive.

Rsspeakermute

a

Either Either Mute IndicatesMuteisactive.

Bsspeakermute

a

Either Either Mute IndicatesMuteisactive.

SpeakerSelect

a

(Multi,Stereo,Mono)

Either Either Speakerselected Indicateswhichspeakerisselected.

Table 3-6 GPO Functions Available

Function Polarity Trigger Active State Description

previous next