- Dolby Multichannel Audio Tool User's Manual

20 Dolby
®
DP570 Multichannel Audio Tool User’s Manual
Controlling the DP570
Table 3‐8liststhepinsavailableforGPOandGPIfunctions.
GPO Setup
Outputpins4and7–19inFigure 3‐7andTable 3‐8areuser‐defined.Todefineafunction
foranoutputpin,entertheGPO SetupmenuintheSystem Settingsportion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.
Table 3-8 GPI/O Pins Available
Pin Function Pin Function
1+5V(150mA) 20 VolumeControlShaftEncoder
Ainput
Highpolarity
Edge‐triggered
2Faultoutput
Lowpolarity
Level‐triggered
Activestate:Fault
21 VolumeControlShaftEncoder
Binput
Highpolarity
Edge‐triggered
3 Erroroutput
Highpolarity
Level‐triggered
Activestate:Error
22 VolumeControlShaftEncoder
presentinput
Lowpolarity
Level‐triggered
Activestate:VolumeControl
ShaftEncoderpresent
4User‐defined
output 23 User‐definedinput
5
Solotallyoutput
a
Highpolarity
Level‐triggered
Activestate:Enabled
a AvailableonlyinunitswiththeCat.No.548AnalogOuputCard.
24 User‐definedinput
6
Solocontrolinput
a
Highpolarity
Level‐triggered
Activestate:Engaged
25 User‐definedinput
7User‐definedoutput 26 User‐definedinput
8User‐definedoutput 27 User‐definedinput
9User‐definedoutput 28 User‐definedinput
10 User‐definedoutput 29 User‐definedinput
11 User‐definedoutput 30 User‐definedinput
12 User‐definedoutput 31 User‐definedinput
13 User‐definedoutput 32 User‐definedinput
14 User‐definedoutput 33 User‐definedinput
15 User‐definedoutput 34 User‐definedinput
16 User‐defined
output 35 User‐definedinput
17 User‐definedoutput 36 User‐definedinput
18 User‐definedoutput 37 Digitalground
19 User‐definedoutput