msm7661 Oki Semiconductor, msm7661 Datasheet - Page 14

• Manufacturer Part Number: msm7661
• Description: Ntsc/pal Digital Video Decoder
• Manufacturer: Oki Semiconductor

6) Various modes detection
7) Output signal phase control
¡ Semiconductor
5.
The Epilogue Block outputs UV signals from the chrominance block and Y signals from the
luminance block in the format based on the signal obtained by setting of the control register.
In this block, the following modes can be selected.
1) Display of blue back when synchronization fails.
2) Output signal Y/CbCr format select
The chrominance signal (U, V component) outputs Cb and Cr data to the C pin in an output
format described later.
3) Selection of 8-bit chroma signal output format
4) Output pin enable select
5) Multiplex signal detect level adjustment
The levels to detect multiplexed signals sent during the vertical blanking period are configured
to be variable. The binary values after input signals are A-to-D converted are employed as the
levels to detect multiplexed signals, and the levels are set in eight steps with respect to the SYNC
tip level.
video in
NTSC/PAL detect mode*
Multiplex signal detect mode
HSYNC synchronization detect mode
OFF
ON*
YCbCr
YCbCr
Offset binary*
2's Complement
High impedance
Output enable*
Epilogue Block
Detect level
OMR [5:3]
80 to 136
4 : 2 : 2*
4 : 1 : 1
MSM7661
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