Philips Semiconductors
Product specification
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
SAA7146A
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MGG267
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Fig.28 Example 1 - Rectangular overlay clipping.
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MGG269
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Fig.29 Example 2 - Rectangular overlay clipping.
7.14.2.1 Memory organization for rectangle overlay windows.
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
UNUSED
COORDINATE
DISPLAY INFO
bit 31 to bit 27 (5-bit)
bit 26 to bit 16 (11-bit)
bit 15 to bit 0 (16-bit)
1998 Apr 09
100