Spectrum Digital TMS320DM6467 Technical Reference page 19

2.5.2 Video Output Port Interfaces
The TMS320DM6467 EVM has a 16 bit wide video output port which directly interface
to an ADV7343 encoder. The video output ports are actually two 8 bit ports which are
combined into a single 16 bit port for high definition video applications.
The on board encoder can generate composite video, S-video, or component video.
The TMS320DM6467's output port is directly interfaced to the video encoder via CBT
multiplexers and switches. The on board encoder video inputs can be directly
connected via the daughter card interface in two 8 bit sections when the daughter
card asserts VIDEO_OUT_EN0 and/or VIDEO_OUT_EN1 high.
For the high definition modes Y0-Y7 and C0-C7 inputs are used on the encoder. To
change the on board CBT multiplexer to this mode the CPLD control register 1, bit 6
needs to be programmed to the appropriate mode. The diagram below
illustrates the video port output configuration on the EVM.
TMS320C6467
VP_DOUT0-7
VP_CLKO2
DC_P2
Switches
VP_DOUT8-15
VP_CLKO3
VIDEO_OUT_EN0
VIDEO_OUT_EN1
CPLD
Figure 2-2, TMS320DM6467 Video Output Port Interfaces
S0-S7
DAC6
Inputs
Y0-Y7
DAC5
Inputs
CBT
DAC4
HS/HD
CLKINA
MUX
Video
and
Encoder DAC3
C0-C7
DAC2
Inputs
CLKINB
DAC1
DISABLE ON BOARD VIDEO PORT LOW
DISABLE ON BOARD VIDEO PORT HI
Spectrum Digital, Inc
2
S-Video Out
THS7314
Video
Composite
Amp
Out
Pr
THS7034 THS7034 HD/SD
Pb
Video Video Video
Encoder Amp Amp
Y
2-5