cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 13

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

CX25870/871
Flicker-Free Video Encoder with Ultrascale Technology
List of Tables
100381B
Table 1-1.
Table 1-2.
Table 1-3.
Table 1-4.
Table 1-5.
Table 1-6.
Table 1-7.
Table 1-8.
Table 1-9.
Table 1-10.
Table 1-11.
Table 1-12.
Table 1-13.
Table 1-14.
Table 1-15.
Table 1-16.
Table 1-17.
Table 1-18.
Table 1-19.
Table 1-20.
Table 1-21.
Table 1-22.
Table 1-23.
Table 1-24.
Table 1-25.
Table 1-26.
Table 1-27.
Table 1-28.
Table 1-29.
Table 1-30.
Table 2-1.
Table 2-2.
Table 2-3.
Table 2-4.
Table 2-5.
Table 3-1.
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Data Pin Assignments for Multiplexed Input Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Data Pin Assignments for Nonmultiplexed Input Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Maximum Programmability and Frequency Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Autoconfiguration Solutions that Utilize 3:2 Clocking Mode . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Master Interface without a BLANK* Signal (Default Immediately after any Autoconfiguration
Command) 1-21
Master Interface with a BLANK* Input to the CX25870/871 . . . . . . . . . . . . . . . . . . . . . . . . 1-22
Pseudo-Master Interface without a BLANK* Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
Pseudo-Master Interface with a BLANK* Input to the CX25870/871. . . . . . . . . . . . . . . . . . 1-23
Slave Interface without a BLANK* Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Slave Interface with a BLANK* Input to the CX25870/871 . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Adjustment to the CX25870/871 MSC Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
Adjustment to the PLL_INT and PLL_FRACT Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
Summary of Allowable BLANK* Signal Directions by Interface. . . . . . . . . . . . . . . . . . . . . . 1-31
Optimal Adaptive and Standard Flicker Filter Settings for Common PC Applications. . . . . . 1-38
VGA/CRTC Registers Involved in TV Out Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-39
Composite and Luminance Amplitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-62
Composite and Chrominance Magnitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63
Register Values for 640x480 / 800x600 / 1024x768 RGB In, SECAM-L Out . . . . . . . . . . . . 1-69
Vital SECAM Bitsettings–Register 0xA2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-72
SECAM Specific Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-74
Serial Writes Required to Switch CX25870/871 into SCART Output Operation . . . . . . . . . . 1-76
Default SCART Outgoing Signal Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-77
CX25870 SCART Outputs for Different SCART Standards. . . . . . . . . . . . . . . . . . . . . . . . . . 1-78
Common Registers Required to Switch CX25870/25871 into EIA-770.2-A- or EIA-770.1-Compli-
ant Component Video Outputs 1-82
Unique Registers Required to Switch CX25870/25871 into EIA-770.2-A- Compliant Component
Video Outputs 1-82
Serial Writes Required to Switch CX25870/871 into VGA/DAC Output Operation . . . . . . . . 1-84
Serial Writes Required to Remove Bilevel Syncs from all VGA/DAC Outputs . . . . . . . . . . . 1-85
ESTATUS[1:0] Read-back Bit Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-88
Register Bit Map (* Indicates Read-Only Register) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Serial Address Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Bit Map for Read-Only Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Data Details Defined for Read-Only Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Programming Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Typical Parts List for Key Passive Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Important Bit Settings for Various Video Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42
Conexant
List of Tables
xiii