FS450, FS451
PRELIMINARY PRODUCT DESCRIPTION
JUNE, 2000, VERSION 1.2
20
COPYRIGHT
©
© 1999, 2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORM ATION
6.2 Control Register Definitions
In the following definitions, range is defined as:
{min value : [max value]}
Please note that registers 0-3F use the little endian numbering scheme while registers 40-8D use
the big endian numbering scheme.
6.2.1 IHO - Input Horizontal Offset
Input Horizontal Offset Low (0)
7
6
5
4
3
2
1
0
IHO7
IHO6
IHO5
IHO4
IHO3
IHO2
IHO1
IHO0
Input Horizontal Offset High (1)
7
6
5
4
3
2
1
0
0
0
0
0
0
IHO10
IHO9
IHO8
Reg
Bit#
Bit Name
Description
1, 0
2-0, 7-0
IHO10-0
Input horizontal offset bits [10-0]. Horizontal displacement of the
image in pixels from the leading edge of horizontal sync. IHO is an
unsigned number.
Range: {0 : [Total Pixels/Line]-1}
6.2.2 IVO - Input Vertical Offset
Input Vertical Offset Low (2)
7
6
5
4
3
2
1
0
IVO7
IVO6
IVO5
IVO4
IVO3
IVO2
IVO1
IVO0
Input Vertical Offset High (3)
7
6
5
4
3
2
1
0
0
0
0
0
0
IVO10
IVO9
IVO8
Reg
Bit#
Bit Name
Description
3, 2
2-0, 7-0
IVO10-0
Input vertical offset bits [10:0]. Vertical displacement of the
image in lines from the leading edge of vertical sync plus a one line
bias. IVO is an unsigned number.
Range: {0 : [Total Lines/Frame]-1}
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