Instruction Manual

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.