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FS450, FS451
PRELIMINARY PRODUCT DESCRIPTION
JUNE, 2000, VERSION 1.2
46
COPYRIGHT
©
© 1999, 2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORM ATION
6.2.34 Miscellaneous Bits 74, Sync Level (75)
Miscellaneous Bit Register 74
7
6
5
4
3
2
1
0
UV_ORDER
PAL_MODE
CHR_BW0
INVERT_TOP
SYS625_50
CPHASE1
CPHASE0
VSYNC5
Sync Level (75)
7
6
5
4
3
2
1
0
SYNC_LVL7
SYNC_LVL6
SYNC_LVL5
SYNC_LVL4
SYNC_LVL3
SYNC_LVL2
SYNC_LVL1
SYNC_LVL0
Reg
Bit#
Bit Name
Description
74
0
VSYNC5
VSync Equalization Pulses. 0=6 and 1=5 VSync equalization
and broad pulses.
74
2-1
CPHASE1-0
Resetting Period of Carrier Clock. 0=every 8 fields, 1=every 4
fields, 2=every other line, 3=once before any chroma burst and then
never reset again.
74
3
SYS625_50
System Field Format. 0=525 lines and 59.94 fields/sec system;
1=625 lines and 50 fields/sec system..
74
4
INVERT_TOP
Invert Field ID Polarity. Inverts the polarity of the encoder's field
identification signal.
74
5
CHR_BW0
Chroma Filter Bandwidth Control. 00=narrow, 01=wide,
10=extra wide, 11=ultra wide (see Miscellaneous Bit Register 47
for bit 1).
74
6
PAL_MODE
PAL or NTSC Mode. 0=NTSC, 1=PAL.
74
7
UV_ORDER
UV Order. Switches ordering of Cb and Cr inputs.
75
7-0
SYNC_LVL7-0
Sync Level. Sync level during non-VBI lines.
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