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NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 1078 -
Revision V1.30
NUC97
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CHNIC
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NUA
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JPEG Thumbnail Scaling-Down Control Register (JTSCALD)
Register
Offset
R/W
Description
Reset Value
JTSCALD
J 0x05C
R/W
JPEG Thumbnail Scaling-Down Control Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
TSX_ON
Reserved
TSCALX_F
7
6
5
4
3
2
1
0
Reserved
TSCALY_F
Bits
Description
[31:16]
Reserved
Reserved.
[15]
TSX_ON
Thumbnail Image Horizontal Down-scaling for Encode
0 = Disable, no horizontal down-scale.
1 = Enable.
[14:13]
Reserved
Reserved.
[12:8]
TSCALX_F
Thumbnail Image Horizontal Down-scaling Factor
A 5-bit value specifies the horizontal down-scaling factor. The scaling factor is equal to
2*(1+SCALX_F).
EX: If SCALX_F = 1, the image will shrink 4 times in horizontal direction.
[7:6]
Reserved
Reserved.
[5:0]
TSCALY_F
Thumbnail Image Vertical Down-scaling Factor
A 6-bit value specifies the vertical down-scaling factor. The scaling factor is equal to
(1+SCALY_F).
EX: If SCALY_F = 3, the image will shrink 4 times in vertical direction.