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FS450, FS451
PRELIMINARY PRODUCT DESCRIPTION
JUNE, 2000, VERSION 1.2
50
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© 1999, 2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORM ATION
6.2.39 WSS Field 0 Line Number, WSS Level, Misc. Bits Reg. 8D (8A-8D)
WSS Field 0 Line Number (8A)
7
6
5
4
3
2
1
0
WSS_LNF07 WSS_LNF06 WSS_LNF05 WSS_LNF04 WSS_LNF03 WSS_LNF02 WSS_LNF01 WSS_LNF00
WSS Level (8B)
7
6
5
4
3
2
1
0
WSS_LVL9
WSS_LVL8
WSS_LVL7
WSS_LVL6
WSS_LVL5
WSS_LVL4
WSS_LVL3
WSS_LVL2
WSS Level (8C)
7
6
5
4
3
2
1
0
0
0
0
0
0
0
WSS_LVL1
WSS_LVL0
Miscellaneous Bits Register 8D
7
6
5
4
3
2
1
0
0
0
0
NOTCH_EN
NOTCH_WD
NOTCH_FRQ2
NOTCH_FRQ1
NOTCH_FRQ0
Reg
Bit#
Bit Name
Description
8A
7-0
WSS_LNF07-0
Field 0 WSS Line. Line number (relative to the previous
VSync) at which the WSS data will appear in Field 0.
8B, 8A
7-0, 1-0
WSS_LVL9-0
WSS High Level. WSS waveform will rise from VBIBL_LVL to
WSS_LVL in a 0 to 1 transition.
8D
2-0
NOTCH_FRQ2-0 Notch Frequency. Selects from 8 possible frequencies around
which the notch will be centered (see table below).
8D
3
NOTCH_WD
Notch Filter Wide Bandwidth. 1=wide, 0=narrow.
8D
4
NOTCH_EN
Notch Filter Enable. 1=On, 0=Off.
NOTCH_FRQ
Description
Notch Y Value
Notch Y Value
0
1 + 1/8 + 1/16
1.1875
1
1 + 1/8 + 1/64
1.1406
2
CCIR 601 NTSC
1 + 1/8 + 1/16 (wide)
1 (narrow)
1.0938
1.0000
3
SQ Pixel NTSC
1 - 1/128
0.9922
4
SQ Pixel PAL
1 - 1/32 - 1/64
0.9531
5
CCIR 601 PAL
1 - 1/8 - 1/32 -1/128 (wide)
1 - 1/4 + 1/32 -1/128 (narrow)
0.8359
0.7734
6
1 - 1/8 - 1/16 - 1/32
0.7813
7
1 - 1/4 - 1/32
0.7188
Table 6: NOTCH_FRQ Values
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