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STV0974 Datasheet(PDF) 49 Page - STMicroelectronics

Part # STV0974
Description  Mobile Imaging DSP
PDF  69 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV0974 Datasheet(HTML) 49 Page - STMicroelectronics

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Functional description
STV0974
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4.9.3.2 Low-level interface
Scaler low-level control
These registers are active only if either “
Still and Live Output Image Size” or “Viewfinder Image
Size” registers are set to “custom” size.
Table 34: Scaler low-level control
Name
Index
R/W
State
code
Data
type
Format
default
Description
Source centre X-
position MSB
0x8060
R/W
A
I
RRRR.RRDD
0000.0001
X-coordinates of the centre of the
source image window.
Default is 322
Source centre X-
position LSB
0x8061
R/W
A
I
DDDD.DDDD
0100.0010
Source centre Y-
position MSB
0x8062
R
A
I
RRRR.RRDD
0000.0000
Y-coordinates of centre of the
source image window.
Default is 242
Source centre Y-
position LSB
0x8063
R
A
I
DDDD.DDDD
1111.0000
Viewfinder Dest.
Image Width MSB
0x8064
R/W
A
I
RRRR.RRDD
0000.0000
Width of the destination image
(after scaling) in viewfinder mode.
The value must be a multiple of 8
pixels.
Viewfinder Dest.
Image Width LSB
0x8065
R/W
A
I
DDDD.DRRR
1010.0000
Viewfinder Dest.
image height MSB
0x8066
R/W
A
I
RRRR.RRDD
0000.0000
Height of the destination image
(after scaling) in viewfinder mode.
This value must be a multiple of 8
pixels.
Viewfinder Dest.
image height LSB
0x8067
R/W
A
I
DDDD.DRRR
0111.1000
Viewfinder Scaling
factor
0x8068
R/W
A
I
RRRR.RDDD
0000.0100
Scaling factor in viewfinder mode:
[0]: Reserved
[1]: x1
[2]: x2
[3]: x3
[4]: x4 (default)
[5]: x5
[6]: x6
[7]: x1.5
[8]: x2.5
Still/Live Dest.
Image Width MSB
0x8069
R/W
A
I
RRRR.RRDD
0000.0010
Width of the destination image
(after scaling) in still / live mode.
This value must be a multiple of:
- 2 pixels in YUV output format
- 16 pixels in JPEG output format
Registers only used for Capture
when in idle mode
Still/Live Dest.
Image Width LSB
0x806A
R/W
A
I
DDDD.D000
1000.0000
Still/Live Dest.
image height MSB
0x806B
R/W
A
I
RRRR.RRDD
0000.0001
Height of the destination image
(after scaling) in still / live mode.
This value must be a multiple of 8
pixels.
Registers only used for Capture
when in idle mode
Still/Live Dest.
image height LSB
0x806C
R/W
A
I
DDDD.D000
1110.0000



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