Rainbow Electronics W90P710CDG User Manual
Page 267
W90P710CD/W90P710CDG
Publication Release Date: September 19, 2006
- 267 -
Revision B2
BITS
DESCRIPTIONS
[31:24] OSDVDNN
An 8-bit value specifies the numerator part (N) of the vertical down-
scaling factor.
[23:16] OSDVDNM
An 8-bit value specifies the numerator part (M) of the vertical down-
scaling factor.
[15:8] OSDHDNN
An 8-bit value specifies the numerator part (N) of the Horizontal
down-scaling factor.
[7:0] OSDHDNM
An 8-bit value specifies the numerator part (M) of the Horizontal
down-scaling factor.
Video Down-Scaling Factor Register (VDDNSCF)
REGISTER
ADDRESS
R/W
DESCRIPTION
RESET
VALUE
VDDNSCF 0xFFF0_801C
R/W
Video Horizontal/Vertical down-scaling
factor
0x0000_0000
31
30
29
28
27
26
25
24
VDVDNN
23
22
21
20
19
18
17
16
VDVDNM
15
14
13
12
11
10
9
8
VDHDNN
7
6
5
4
3
2
1
0
VDHDNM
BITS
DESCRIPTIONS
[31:24] VDVDNN
An 8-bit value specifies the numerator part (N) of the vertical down-
scaling factor.
[23:16] VDVDNM
An 8-bit value specifies the numerator part (M) of the vertical down-
scaling factor.
[15:8] VDHDNN
An 8-bit value specifies the numerator part (N) of the Horizontal
down-scaling factor.
[7:0] VDHDNM
An 8-bit value specifies the numerator part (M) of the Horizontal
down-scaling factor.
Up-Scaling or Down-Scaling, firmware can choose only one function of it. If both factor register is
configured, the behavior of LCD Controller is undefined.