PNX1501E NXP Semiconductors, PNX1501E Datasheet - Page 617
PNX1501E
Manufacturer Part Number
PNX1501E
Description
Digital Signal Processors & Controllers (DSP, DSC) MEDIA PROCESSOR PNX15XX/266MHZ
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1501E.pdf
(819 pages)
Specifications of PNX1501E
Product
DSPs
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SOT-795
Minimum Operating Temperature
0 C
Lead Free Status / Rohs Status
Details
Other names
PNX1501E,557
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Product data sheet
// fetch a source pixel into Src
if (BltCtl.SRC == 0)
// fetch src pixel from system memory
....
else if (BltCtl.SRC == 1)
// src data is color from CPU
Src= HostData[31:0]
else if (BltCtl.SRC == 4)
begin
// fetch 4 bits of alpha from host, expand to 8 bits
Src.alpha = (HostData[3:0] << 4) | HostData[3:0] ;
Src.red = HAlphaColor.red
Src.green = HAlphaColor.green
Src.blue = HAlphaColor.blue
end
else if (BltCtl.SRC == 5)
begin
// fetch 8 bits of alpha from host
Src.alpha = HostData[7:0] ;
Src.red = HAlphaColor.red
Src.green = HAlphaColor.green
Src.blue = HAlphaColor.blue
end
else if (BltCtl.Src == 6)
// set src to 1 if no src data.
begin
Src.red = HAlphaColor.red
Src.green = HAlphaColor.green
Src.blue = HAlphaColor.blue
Src.alpha = HAlphaColor.alpha
End
// copy mono foreground info into the SurfAlpha
SurfAlpha = MonoHostFColor
// handle src bitmaps without alpha values
if (BltCtl.A[1:0] == 3 || (PixelSize==16 && PFormat == 0) )
Src.alpha = 1;
// handle non-premultiplied source pixels
if (BltCtl.A[1:0] == 1)
begin
Src.red *= Src.alpha ;
Src.green *= Src.alpha ;
Src.blue *= Src.alpha ;
end
// scale the src with the surface alpha values
Src.red *= SurfAlpha.red;
Src.green *= SurfAlpha.green;
Src.blue *= SurfAlpha.blue;
Src.alpha *= SurfAlpha.alpha
Rev. 2 — 1 December 2004
© Koninklijke Philips Electronics N.V. 2002-2003-2004. All rights reserved.
Chapter 20: 2D Drawing Engine
PNX15xx Series
20-8
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