cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 119
cx25870
Manufacturer Part Number
cx25870
Description
Video Encoder With Adaptive Flicker Filtering And Hdtv Output
Manufacturer
Conexant Systems, Inc.
Datasheet
1.CX25870.pdf
(291 pages)
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CX25870/871
Flicker-Free Video Encoder with Ultrascale Technology
Table 2-5. Programming Detail For All Read/Write Registers (5 of 16)
100381B
CSC_SEL
CVBSD_INV
DACDISA
DACDISB
Bit/Register
Names
Bit 0–32
Bit 2–D8
Bit 0–BA
Bit 1–BA
Bit Location
This bit is only effective when OUT_MODE[1:0] = 11, HDTV_EN = 1, and RASTER_SEL is
nonzero.
0 = Standard color space conversion for RGB to Y (R-Y) (B-Y) based on
Y =0 .299R +0 .587G +0 .114 B (DEFAULT)
1 = HDTV color space conversion for RGB to Y (R-Y) (B-Y) based on
Y = 0.2126R + 0.7152G + 0.0722B
0 = Normal operation. (DEFAULT)
1 = Invert CVBS_DLY output.
No more than 1 DAC should be disabled at any time.
0 = Normal operation. (DEFAULT)
1 = Disables DACA output. Current is set to 0 mA; output will go to 0 V.
No more than 1 DAC should be disabled at any time.
0 = Normal operation. (DEFAULT)
1 = Disables DACB output. Current is set to 0 mA; output will go to 0 V.
011101 =YCrCb
011111 = Reserved
100000 = RGB
100001 = RGB
100010 = RGB
100011 = RGB
100100 = YCrCb
100101 = YCrCb
100110 = YCrCb
100111 = YCrCb
101000 = RGB
101001 = RGB
101010 = RGB
101011 = RGB
101100 = RGB
101101 = RGB
101110 = RGB
101111 = RGB
0 = YCrCb
Conexant
720x576
1024x768 NTSC
640x480
640x480
800x600
800x600
640x480
640x480
800x600
800x600
800x600
320x200
1024x768 NTSC
1024x768 PAL-BDGHI Overscan = Higher
720x480
320x200
640x480
640x480
Bit/Register Definition
PAL-BDGHI Interlaced Input, Slave
NTSC
PAL-BDGHI Overscan = Higher
NTSC
PAL-BDGHI Overscan = Higher
NTSC
PAL-BDGHI Overscan = Higher
NTSC
PAL-BDGHI Overscan = Higher
NTSC
PAL-BDGHI Pix Double Set Overscan =
NTSC
NTSC
PAL-M
(Brazil)
PAL-Nc
(Argentina)
Interface Overscan = 0%
DIV2 set
Overscan = Lower
Overscan = Higher
Overscan = Higher
Overscan = Higher
Overscan = Higher
Overscan = Standard
Standard
Overscan = Higher
Noninterlaced Input for
DVD Overscan = Very Low
Pix Double Set Overscan =
Standard
Overscan = Standard
Overscan = Standard
2.0 Internal Registers
2.4 Reading Registers
Mode 29
Mode 30
Mode 31
Mode 32
Mode 33
Mode 34
Mode 35
Mode 36
Mode 37
Mode 38
Mode 39
Mode 40
Mode 41
Mode 42
Mode 43
Mode 44
Mode 45
Mode 46
Mode 47
2-13
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