S5D2650 Samsung Semiconductor, Inc., S5D2650 Datasheet - Page 42

• Manufacturer Part Number: S5D2650
• Description: Multistandard Video Decoder/scaler
• Manufacturer: Samsung Semiconductor, Inc.

S5D2650 Data Sheet
formats use CK as pixel clock; the other formats use CK2 as pixel clock. The first pixel is always aligned to the
leading edge of the HAV signal.
1.10.1. Validation Code Insertion
S5D2650 inserts validation codes during inactive video (HAV is inactive), and invalid video (HAV is active but
EHAV is inactive) to assist in recognition of scaled data and VBI data. Table 12 lists the available codes, when they
are inserted, and related programming registers.
An example timing diagram for some of the programmable modes is shown in Figure 35. In this diagram, The field
rate is 60 Hz, A CCIR 601 sampling rate has been selected thus giving 720 active pixels. The horizontal scaling
ratio has been selected for an output of 718 out of 720 pixels.
UNUSEY This user programmed code is inserted in the Y or G output stream when HAV is inactive and
UNUSEU This user programmed code is inserted in the U or B output stream when HAV is inactive and
UNUSEV This user programmed code is inserted in the V or R output stream when HAV is inactive and
INVALU
INVALY
INVALV
Code
ELECTRONICS
This user programmed code is inserted in the Y or G output stream in scaling operation when
HAV is active while EHAV is inactive. Insertion of this code is independent of the output
format. Related register is INVALY.
This user programmed code is inserted in the U or B output stream in scaling operation when
HAV is active while EHAV is inactive. Insertion of this code is independent of the output
format. Related register is INVALU.
This user programmed code is inserted in the V or R output stream in scaling operation when
HAV is active while EHAV is inactive. Insertion of this code is independent of the output
format. Related register is INVALV.
no other reference code is inserted. Insertion of this code is independent of the output format.
Related register is UNUSEY.
no other reference code is inserted. Insertion of this code is independent of the output format.
Related register is UNUSEU.
no other reference code is inserted. Insertion of this code is independent of the output format.
Related register is UNUSEV.
Table 12: Invalid and Unused Code Insertion
Description
MULTIMEDIA VIDEO
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7/18/03