Filter
Top Products
www.ti.com
4.12.18VideoDisplayField1VerticalSynchronizationEndRegister(VDVSYNE1)
VideoDisplayRegisters
Thevideodisplayfield1verticalsynchronizationstartregister(VDVSYNS1)isshowninFigure4-47and
describedinTable4-22.
Figure4-47.VideoDisplayField1VerticalSynchronizationStartRegister(VDVSYNS1)
31282716
ReservedVSYNCYSTART1
R-0R/W-0
1512110
ReservedVSYNCXSTART1
R-0R/W-0
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Table4-22.VideoDisplayField1VerticalSynchronizationStartRegister(VDVSYNS1)Field
Descriptions
Bitfield
(1)
symval
(1)
ValueDescription
31-28Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothis
fieldhasnoeffect.
27-16VSYNCYSTART1OF(value)0-FFFhSpecifiesthelinewhereVSYNCisassertedforfield1.
DEFAULT0
15-12Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothis
fieldhasnoeffect.
11-0VSYNCXSTART1OF(value)0-FFFhSpecifiesthepixelwhereVSYNCisassertedinfield1.
DEFAULT0
(1)
ForCSLimplementation,usethenotationVP_VDVSYNS1_field_symval
Thevideodisplayfield1verticalsynchronizationendregister(VDVSYNE1)controlstheendofvertical
synchronizationinfield1.TheVDVSYNE1isshowninFigure4-48anddescribedinTable4-23.
GenerationoftheverticalsynchronizationisshowninFigure4-6.TheVSYNCsignalisde-asserted
whenevertheframelinecounter(FLCOUNT)isequaltoVSYNCYSTOP1andtheframepixelcounter
(FPCOUNT)isequaltoVSYNCXSTOP1.
Figure4-48.VideoDisplayField1VerticalSynchronizationEndRegister(VDVSYNE1)
31282716
ReservedVSYNCYSTOP1
R-0R/W-0
1512110
ReservedVSYNCXSTOP1
R-0R/W-0
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Table4-23.VideoDisplayField1VerticalSynchronizationEndRegister(VDVSYNE1)Field
Descriptions
Bitfield
(1)
symval
(1)
ValueDescription
31-28Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothis
fieldhasnoeffect.
27-16VSYNCYSTOP1OF(value)0-FFFhSpecifiesthelinewhereVSYNCisde-assertedforfield1.
DEFAULT0
(1)
ForCSLimplementation,usethenotationVP_VDVSYNE1_field_symval
SPRUEM1–May2007VideoDisplayPort139
SubmitDocumentationFeedback