cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 118

• Manufacturer Part Number: cx25870
• Description: Video Encoder With Adaptive Flicker Filtering And Hdtv Output
• Manufacturer: Conexant Systems, Inc.

2.0 Internal Registers
2.4 Reading Registers
Table 2-5. Programming Detail For All Read/Write Registers (4 of 16)
2-12
CONFIG[5:0]
Bit/Register
Names
Bits [6:4] and bits
[2:0]–B8
Bit Location
The combination of CONFIG[5:3] and CONFIG[2:0] determines the autoconfiguration
mode entered by the CX25870/871 immediately after register 0xB8 is written. Check
Appendix C
000000 = RGB
000001 = RGB
000010 = RGB
000011 = RGB
000100 = YCrCb
000101 = YCrCb
000110 = YCrCb
000111 = YCrCb
001000 = RGB
001001 = RGB
001010 = RGB
001011 = RGB
001100 = RGB
001101 = RGB
001110 = YCrCb
001111 = YCrCb
010000 = Reserved
010001 = RGB
010010 = RGB
010011 = RGB
010100 = Reserved
010101
010110 = YCrCb
010111 = YCrCb
011000 = RGB
011001 = RGB
011010 = RGB
011011 = Reserved
011100 = YCrCb
CONFIG
[5:0]
for a list of all register values by autoconfiguration mode.
= YCrCb 640x480
Format
Input
Conexant
640x480
640x480
800x600
800x600
640x480
640x480
800x600
800x600
640x400
640x400
1024x768 NTSC
1024x768 PAL-BDGHI Overscan = Standard
320x240
320x240
1024x768 PAL-BDGHI Overscan = Higher
640x480
800x600
800x600
800x600
800x600
720x400
720x400
1024x768 NTSC
720x480
1024x768 NTSC
Resolution
Flicker-Free Video Encoder with Ultrascale Technology
Active
Bit/Register Definition
NTSC
PAL-BDGHI Overscan = Standard
NTSC
PAL-BDGHI Overscan = Lower
NTSC
PAL-BDGHI Overscan = Standard
NTSC
PAL-BDGHI Overscan = Lower
NTSC
PAL-BDGHI Overscan = Standard
NTSC
PAL-BDGHI Pix Double Set = Standard Mode 13
PAL-BDGHI Overscan = Lower
NTSC
PAL-BDGHI Overscan = Standard
PAL-BDGHI Overscan = Lower
NTSC
PAL-BDGHI Overscan = Standard
NTSC
PAL-BDGHI 9-dot font for DOS
NTSC
Output
Overscan = Lower
Overscan = Alternate
Overscan = Lower
Overscan = Alternate
Overscan = Standard
Overscan = Standard
Pix Double Set = Standard Mode 12
Overscan = Higher
Overscan = Lower
Overscan = Lower
9-dot font for DOS
Overscan =Standard
Overscan =Standard
Overscan = Lower
Interlaced Input, Slave
Interface Overscan = 0%
DIV2 set
Output Ratio
CX25870/871
Mode 0
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 6
Mode 7
Mode 8
Mode 9
Mode 10
Mode 11
Mode 14
Mode 15
Mode 16
Mode 17
Mode 18
Mode 19
Mode 20
Mode 21
Mode 22
Mode 23
Mode 24
Mode 25
Mode 26
Mode 27
Mode 28
100381B
Mode