28 / 60 page
FS450, FS451
PRELIMINARY PRODUCT DESCRIPTION
JUNE, 2000, VERSION 1.2
28
COPYRIGHT
©
© 1999, 2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORM ATION
6.2.10 APO, ALO, AFO - Auxiliary Pixel, Line, and Field Offsets
Auxiliary Pixel Offset Low (18)
7
6
5
4
3
2
1
0
APO7
APO6
APO5
APO4
APO3
APO2
APO1
APO0
Auxiliary Pixel Offset High (19)
7
6
5
4
3
2
1
0
0
0
0
0
0
0
APO9
APO8
Auxiliary Line Offset (1A)
7
6
5
4
3
2
1
0
-
ALO6
ALO5
ALO4
ALO3
ALO2
ALO1
ALO0
Not Used (1B)
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
Auxiliary Field Offset (1C)
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
AFO0
Not Used (1D)
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
Reg
Bit#
Bit Name
Description
19, 18
9-0
APO9-0
Auxiliary Pixel Offset [9:0]. Number of 27MHz cycles of
delay/advance of the Auxiliary Video Reference signals. APO is a
10 bit signed number.
1A
6-0
ALO6-0
Auxiliary Line Offset [6:0]. Number of lines of delay/advance of
the Auxiliary Video Reference signals. AFO is a 7 bit signed
number.
1C
0
AFO
Auxiliary Field Offset [0]. Inverts the field of the Auxiliary Video
Reference signals.
APO Range: {-512 : 511}, ALO Range: {-64 : 63}, AFO Range: {0 : 1}
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