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ADE3800 数据表(PDF) 132 Page - STMicroelectronics

部件名 ADE3800
功能描述  Analog LCD Display Engine for XGA and SXGA Resolutions with Embedded LVDS and RSDS Transmitters
PDF  138 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ADE3800 数据表(HTML) 132 Page - STMicroelectronics

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Scaler Equations
ADE3800
132/138
7
Scaler Equations
fSclk = 140 MHz, and Sclk_PR = 18AF
SCL_TRIGGER_DLY = InitTrigDelay;// wait 3 frames
wPtrMinPost = SCL_PTR_POST;
// feedback loop to tune trigger delay:
while ( !(8 < wPtrMinPost < 16) ) {// landing zone is (8, 16) & mid point is 12
wDiff = wPtrMinPost > (512 + 12) ? wPtrMinPost – (1024 + 12): wPtrMinPost - 12;
dwTriggerDelay = dwTriggerDelay + ((((xclk_freq / inclk_freq) * 3) * wDiff) / 2);
SCL_TRIGGER_DLY = max (dwTriggerDelay, 1);
// wait 2 frames for new trigger delay to take effect
wPtrMinPost = SCL_PTR_POST;
}
)
3
(
_
_
_
NumPPC
OTCLK
PR
FSYN
PR
Dclk
−
⋅
=
2
_
_
hpixel
dest
HP
hpos
dest
out −
=
2
_
_
vpixel
dest
VP
vpos
dest
out −
=
10
=
WinTop
⎩
⎨
⎧
−
+
⇒
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otherwise
VP
WinTop
panels
DE
WinBot
out
_
,
1
,
2
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8
min
,
48
max(
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−
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out
HB
HT
WinLeft
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HP
WinLeft
WinRight
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hpixel
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rH
ScaleFacto
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_
16
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VP
rV
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_
16
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2
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_
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PR
Dclk
rH
ScaleFacto
PR
Sclk
rate
pipe
13
)
24
)
23
2
)
_
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_
>>
+
⋅
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origin
13
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1
2
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(((
_
>>
⋅
−
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136
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9
43
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15
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6
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:
5
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1024
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LINES
NUM
H
SMEAS
hsync
per
xclks
VTRIG
SMUX
HP
lay
InitTrigDe
out
in



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