Start
RFBI out enable
Enable the graphics or video pipeline:
Set DSS.DISPC_XXX_ATTRIBUTES[0] ENABLE bit to 1 (XXX=GFX or VIDn)
Enable the display controller output:
Set DSS.DISPC_CONTROL[0] LCDENABLE bit to1
No
Yes
Internal trigger mode
used?
Program the nuber of lines where to start transfer:
Set the DSS.RFBI_LINE_NUMBER register
Disable internal software trigger
Set DSS.RFBI_CONTROL[4] ITE bit to 0
Configure the number of pixels to tranfer:
Set DSS.RFBI_PIXEL_CNT[31:0] PIXELCNT bit field
Enable the RFBI module output to update the remote frame buffer:
Set DSS.RFBI_CONTROL[0] ENABLE bit to 1
No
Yes
Internal trigger mode
used?
Enable internal software trigger
Set DSS.RFBI _CONTROL[4] ITE bit to 1
End
RFBI output enable
dss-324
Public Version
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Display Subsystem Basic Programming Model
Figure 7-146. RFBI Output Enable
7.5.8 Video Encoder Basic Programming Model
7.5.8.1
Video Encoder Software Reset
By setting the DSS.
[8] RESET bit to 1, the video encoder is reset. This bit is
automatically cleared by hardware when the reset is done.
NOTE:
Before changing the standard (NTSC or PAL) and all the related registers, a software reset
is required to properly initialize the VENC module.
7.5.8.2
Video DAC Stage Settings
The video output format can be either:
•
one composite video (CVBS) output signal with video DAC1 or
1773
SWPU177N – December 2009 – Revised November 2010
Display Subsystem
Copyright © 2009–2010, Texas Instruments Incorporated