Dolby Laboratories DP570 GPO Setup, GPI Setup

Controlling the DP570 Using the GPI/O Connector
Dolby® DP570 Multichannel Audio Tool User’s Manual 23
GPO Setup
Outputpins4and7–19inFigure 3‐7andTable areuser‐defined.To defineafunctionfor
anoutputpin,entertheGPO SetupmenuintheSystem SettingssectionoftheSetup
menu,usethearrowbuttonstoselectthepinnumberyouwishtodefine,andpressEnter.
Threesubmenusareavailable:Trigger,Polarity,andFunction.Triggerdefinesthe
typeofsignalthepinproducesandcanbesettoLevelorEdge.IfsettoLevel, thepin
producesaconstantlevel,ifsettoEdge,thepinproducesapulseofabout200msduration
(185msminimum).PolaritycanbesettoPositive/HighorNegative/Low.
Edge‐triggeredsignalsareeitherpositiveornegative.Level‐triggeredsignalsareeither
highorlow.
TheFunctionmenuletsyouassignafunctiontothepinyouhaveselected.
GPI Setup
Inputpins23–36inFigure 3‐7andTabl e 3‐8areuser‐defined.Todefineafunctionforan
inputpin,entertheGPI SetupmenuintheSystem SettingssectionoftheSetup
menu,usethearrowbuttonstoselectthepinnumberyouwishtodefine,andpressEnter.
Threesubmenusareavailable:Trigger,Polarity,andFunction.Triggerdefinesthe
typeofsignalthepinrequiresandcanbesettoLevelorEdge.IfsettoLevel,thepinis
triggeredbyaconstantlevel;ifsettoEdge,thepinrequiresapulseof100msminimum
duration.PolaritycanbesettoPositive/HighorNegative/Low.Edge‐triggered
signalsareeitherpositiveornegative.Level‐triggeredsignalsareeitherhighorlow.
6Solocontrolinputa
Highpolarity
Level‐triggered
Activestate:Engaged
24 User‐definedinput
7User‐definedoutput 25 User‐definedinput
8User‐definedoutput 26 User‐definedinput
9User‐definedoutput 27 User‐definedinput
10 User‐definedoutput 28 User‐definedinput
11 User‐definedoutput 29 User‐definedinput
12 User‐definedoutput 30 User‐definedinput
13 User‐definedoutput 31 User‐definedinput
14 User‐definedoutput 32 User‐definedinput
15 User‐definedoutput 33 User‐definedinput
16 User‐definedoutput 34 User‐definedinput
17 User‐definedoutput 35 User‐definedinput
18 User‐definedoutput 36 User‐definedinput
19 User‐definedoutput 37 Digitalground
a.AvailableonlyinunitswiththeCat.No.548AnalogOptionCard.
Table 3-8 GPI/O Pins Available
Pin Function Pin Function