saa7146a NXP Semiconductors, saa7146a Datasheet - Page 94
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saa7146a
Manufacturer Part Number
saa7146a
Description
Multimedia Bridge, High Performance Scaler And Pci Circuit Spci
Manufacturer
NXP Semiconductors
Datasheet
1.SAA7146A.pdf
(139 pages)
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Philips Semiconductors
7.14.2.1
Every overlay window is defined by two corners with four coordinates. One Dword holds one 11-bit coordinate and 16-bit
with the display information for up to 16 overlay windows.
Table 91 Dword organization for rectangular overlay windows
2004 Aug 25
handbook, full pagewidth
handbook, full pagewidth
bit 31 to bit 27 (5-bit)
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
Memory organization for rectangle overlay windows.
UNUSED
0
1
2
3
4
5
6
7
0
c
1
c
0
1
2
3
4
2
c
b
b
b
b
0
3
b
b
b
b
Fig.27 Example 1 - Rectangular overlay clipping.
Fig.28 Example 2 - Rectangular overlay clipping.
1
4
b
b
b
b
2
bit 26 to bit 16 (11-bit)
5
a
a
b
b
b
b
3
6
a
a
a
4
7
a
a
a
5
a
a
a
COORDINATE
8
a
a
a
6
a
a
a
9
7
a
a
a
94
8
a
a
a
Relevant coordinates shaded dark
pixel
0
2
3
5
6
9
0
9
a
1
1
1
0
0
1
x
Relevant coordinates shaded dark
pixel
5
9
b
1
0
0
0
1
1
x
c
0
0
1
1
1
1
x
a
1
0
bit 15 to bit 0 (16-bit)
line
line
0
1
3
4
7
0
1
4
MGG267
DISPLAY INFORMATION
a
1
0
0
1
1
x
a
1
0
b
1
1
0
0
1
x
MGG269
0
1
1
1
1
c
x
Product specification
SAA7146A