Registers
805
SPRUHI7A – December 2012 – Revised June 2016
Copyright © 2012–2016, Texas Instruments Incorporated
High-Definition Video Processing Subsystem (HDVPSS)
1.3.11.11 SC_M_cfg_sc11 Register (offset = 2Ch) [reset = 0h]
SC_M_cfg_sc11 is shown in
and described in
.
Figure 1-484. SC_M_cfg_sc11 Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CFG_NLIN_ACC_INC
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit;
-n
= value after reset
Table 1-399. SC_M_cfg_sc11 Register Field Descriptions
Bit
Field
Type
Reset
Description
31-0
CFG_NLIN_ACC_INC
R/W
0h
This parameter is used by horizontal scaling. It is used by nonlinear
scaling only. It defines the increment of the nonlinear accumulator.
if upscaling then
d = 0
if Ltar !=0 then
K =round[2^24*Lsrc/(Ltar*Ltar) ]
where Lsrc= (srcW-srcWi)/2
else K = 0
elseif downscaling
d = (tarW-1)/2
if Ltar!=0 then K = round[ 2^24 * Lsrc / (Ltar*(Ltar-2d))]
where Lsrc= (srcW-srcWi)/(2n) and n=1..2 or 4
else K = 0
nlin_acc_inc = 2*K (negative for downscaling)