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41978 AMD RS690M Databook 3.06
© 2008 Advanced Micro Devices, Inc.
B-2
Proprietary
The RS690E, on the other hand, does not provide any sort of analog TV output and does not support Macrovision copy
protection. Despite the lack of TV output, the DACs of the RS690E can still be used to provide a high quality CRT output.
The table and figure below summarize the differences between the RS690T and RS690E in terms of analog TV and
VGA/CRT display outputs.
Figure B-2 RS690T and RS690E Analog Display Output Signals
Note:
For designs using the RS690E, the C, Y, and COMP pins on the package do not provide any output and should be
left unconnected on the motherboard.
B)
TMDS/DVI Digital Output Multiplexed on the LVDS/TMDS (LVTM) Interface
Both the RS690E and RS690T support a dual-channel LVDS 24-bit output through its LVDS interface. However, on the
RS690E, the interface is enhanced to also support a TMDS/DVI output in place of the LVDS format. An RS690E
based-system requires a custom video BIOS to configure the enhanced LVDS/TMDS (LVTM) interface to drive out
either LVDS or TMDS/DVI signals. The video BIOS is available from AMD. The minimum version number for the
LVDS output is 10.55.0.15 and for the TMDS/DVI output is 10.55.0.31. Contact your AMD CSS representative for the
latest video BIOS.
A custom video BIOS and proper signal routing from the LVTM interface to a DVI connector are the only requirements
for the RS690E to support a TMDS/DVI output on the LVTM interface. No other register programming is needed. Users
should not attempt to configure the LVTM port by programming the RS690E's registers directly.
Table B-2 RS690T/E Analog TV and VGA/CRT Support Differences
Analog Output Feature
RS690T
RS690E
Composite NTSC/PAL TV Port
Available
Not Available
S-Video (Y/C) NTSC/PAL TV Port
Available
Not Available
Component 480i/576i (YUV/YCbCr) TV Port
Available
Not Available
Component 480p/576p/720p/1080i HDTV (YPbPr) TV
Port
Available
Not Available
Standard VGA/CRT (RGBHV) Port
Available
Available
Note:
AMD customers MUST have a Macrovision license in place or be authorized by Macrovision to purchase
Macrovision-enabled technology before AMD can sell them any RS690T chips.
RS690E devices can be obtained
without a Macrovision license.
C
Y
COMP
RED
GREEN
BLUE
DACVSYNC
DACNSYNC
or
Y_G
COMP_B
C_R
R
G
B
VSYNC#
HSYNC#
CRT/T
V
OUT
C21
C20
D19
E19
F19
G19
C6
A5
RS690T
RED
GREEN
BLUE
R
G
B
VSYNC#
HSYNC#
E19
F19
G19
C6
A5
DACVSYNC
DACNSYNC
CR
T
RS690E
Содержание RS690M
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