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Display Subsystem
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A.6.2 Display Subsystem Environment
The environmental limitations in the OMAP36xx in CYN package device display subsystem because of
missing pins on the package are:
•
cvideo1_out, cvideo1_vfb, cvideo2_out, cvideo2_vfb, cvideo1_rset are not bonded to pins:
–
TV-out video encoder output is not supported
describes the display subsystem I/O pins at the device boundary. The removed pins are
highlighted in orange. Most of the pins have also other functions through pin signal multiplexing. Signal
multiplexing options can be seen in
, Pad Multiplexing Register Fields.
Table A-9. Display Subsystem I/O Pins
Pin name
I/O
Description
Reset Value
dss_pclk
O
LCD pixel clock when in parallel mode
0
dss_hsync
O
LCD horizontal synchronization when in parallel mode
0
dss_vsync
O
LCD vertical synchronization when in parallel mode
0
dss_acbias
O
AC bias control (STN) or pixel data enable (TFT) output in when
0
parallel mode
dss_data[23:0]
I/O
LCD pixel data bus when in parallel mode
0
cvideo1_out
O
Composite output for single channel mode
0
cvideo1_vfb
I
Feedback through resistor to out
HiZ
cvideo1_rset
I
Reference current resistor setting
HiZ
cvideo2_out
O
S-video [C] for dual channel mode
0
cvideo2_vfb
I
Feedback through resistor to out
HiZ
3666
OMAP36xx Multimedia Device in CYN Package
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated