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LF2301JC55 Datasheet PDF : 18 Pages
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DEVICES INCORPORATED
LF2301
Image Resampling Sequencer
Transformation Parameter Register
Loading
The LF2301 allows Transformation
Parameters to be updated on-the-fly.
The loading of these registers is
double-buffered (see Figure 4). Any
or all of the first level registers can
be loaded using P11-0, B3-0, and
WEN without affecting the param-
eters currently in use.
LDR simultaneously updates all
Transformation Parameter Registers.
If Autoload (ALR) is active, these
registers will be updated automati-
cally at the beginning of each new
image. Note that NOOP does not
affect the loading of the Transforma-
tion Parameter Registers.
FIGURE 4. LDR CONTROL FOR PARAMETER UPDATE
12
P11-0
B3-0 4
WEN
LDR
TRANSFORMATION
PARAMETER
REGISTERS
C15
C14
C13
C2
C1
C0
PRELOAD
REGISTERS
CLK
TABLE 4. PARAMETER REGISTER FORMATS (ROW OR COLUMN MODE)
ADDR MSB
FORMAT
LSB
ROW
0000
211
210
29
28
27
26
25
24
23
22
21
20
XMIN
0001
211
210
29
28
27
26
25
24
23
22
21
20
XMAX
0010
26
25
24
23
22
21
20
2–1
2–2
2–3
2–4
2–5
x0 (LS)
0011 ALR AIN PIPE R/C M1 M0 –212 211 210 29
28
27
Controls, x0 (MS)
0100
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
2–9
2–10
2–11
2–12
dx/du (LS)
0101 TM F2
F1
F0 –27
26
25
24
23
22
21
20 Controls, dx/du (MS)
0110
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
2–9
2–10
2–11
2–12
dx/dv (LS)
0111
K3 K2
K1
K0 –27
26
25
24
23
22
21
20 Kernel, dx/dv (MS)
1000
2–9
2–10
2–11
2–12
2–13
2–14
2–15
2–16
2–17
2–18
2–19
2–20
d2x/dudv (LS)
1001 –23 22
21
20
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
d2x/dudv (MS)
1010
2–9
2–10
2–11
2–12
2–13
2–14
2–15
2–16
2–17
2–18
2–19
2–20
d2x/du2 (LS)
1011 –23 22
21
20
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
d2x/du2 (MS)
1100
2–9
2–10
2–11
2–12
2–13
2–14
2–15
2–16
2–17
2–18
2–19
2–20
d2x/dv2 (LS)
1101 –23 22
21
20
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
d2x/dv2 (MS)
1110
211
210
29
28
27
26
25
24
23
22
21
20
UMIN
1111
211
210
29
28
27
26
25
24
23
22
21
20
UMAX
COLUMN
YMIN
YMAX
y0 (LS)
Controls, y0 (LS)
dy/du (LS)
Controls, dy/du (MS)
dy/dv (LS)
Kernel, dy/dv (MS)
d2y/dudv (LS)
d2y/dudv (MS)
d2y/du2 (LS)
d2y/du2 (MS)
d2y/dv2 (LS)
d2y/dv2 (MS)
VMIN
VMAX
Video Imaging Products
2-6
08/16/2000–LDS.2301-H
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