NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 1013 -
Revision V1.30
NUC97
0
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CHNIC
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L
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NUA
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Graphic Engine Tile Count or Vertical Horizontal Scale Factor Regsiter
Register
Offset
R/W Description
Reset Value
GE2D_TCNTVHSF
0x008 R/W
Graphic Engine Tile Count or Vertical Horizontal Scale
Factor Register
0x0000_0000
31
30
29
28
27
26
25
24
VSF_N
23
22
21
20
19
18
17
16
VSF_M
15
14
13
12
11
10
9
8
TILE_X/HSF_N
7
6
5
4
3
2
1
0
TILE_Y/HSF_M
Bits
Description
[31:24]
VSF_N
Vertical N Scaling Factor
An 8-bit value specifies the numerator part (VSF_N) of the vertical scaling factor in graphic engine.
The output image height will be equal to the input image height * VSF_N/VSF_M. The value of
VSF_N must be equal or less than VSF_M.
[23:16]
VSF_M
Vertical M Scaling Factor
An 8-bit value specifies the denominator part (VSF_M) of the vertical scaling factor in graphic
engine. The output image height will be equal to the input image height * VSF_N/VSF_M. The
value of VSF_N must be equal or less than VSF_M.
[15:8]
TILE_X/
HSF_N
Tile Count for Y-axis/Horizontal N Scaling Factor
If AU (GE2D_CTL[10]) is high, GE2D is operating in TileBLT mode and this 8-bit field indicates the
number of tiles in Y-axis.
If AU (GE2D_CTL[10]) is low, this 8-bit value specifies the numerator part (HSF_N) of the
horizontal scaling factor in graphic engine. The output image width will be equal to the input image
width * HSF_N/HSF_M. The value of HSF_N must be equal or less than HSF_M.
[7:0]
TILE_Y/
HSF_M
Tile Count for X-axis /Horizontal M Scaling Factor
If AU (GE2D_CTL[10]) is high, GE2D is operating in TileBLT mode and this 8-bit field indicates the
number of tiles in X-axis.
If AU (GE2D_CTL[10]) is low, this 8-bit value specifies the denominator part (HSF_M) of the
horizontal scaling factor in graphic engine. The output image width will be equal to the input image
width * HSF_N/HSF_M. The value of HSF_N must be equal or less than HSF_M.