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Philips S1D13505 Manual De Usuario

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Page 138
Epson Research and Development
Vancouver Design Center
S1D13505
Hardware Functional Specification
X23A-A-001-14
Issue Date: 01/02/02
Where KB = K bytes and MB = 1024K bytes
13.4  Limitations
The following limitations apply to SwivelView:
• Only 8 bpp and 16 bpp modes are supported – 1/2/4 bpp modes are not supported.
• Hardware cursor and ink layer images are not rotated – software rotation must be used. Swivel-
View must be turned off when the programmer is accessing the sprite or the ink layer.
• Split screen images appear side-by-side, i.e. the portrait display is split vertically.
• Pixel panning works vertically.
Table 13-2   Minimum DRAM Size Required for SwivelView
Panel Size
Panel Type
Display 
Mode
Display 
Buffer Size
Half-Frame 
Buffer Size
Minimum 
DRAM Size
Sprite/Ink 
Layer Buffer 
Size
Ink/Cursor 
Layer Location
320 
×
 240
Single
Color
8 bpp
240KB
0KB
512KB
1KB/18.75KB
496KB/ 480KB
16 bpp
480KB
Mono
8 bpp
240KB
16 bpp
480KB
Dual
Color
8 bpp
240KB
18.75KB
480KB/464KB
16 bpp
480KB
480KB/--
Mono
8 bpp
240KB
4.69KB
496KB/480KB
16 bpp
480KB
640 
×
 480
Single
Color
8 bpp
480KB
0KB
1KB/75KB
496KB/--
16 bpp
960KB
2MB
2032KB/1968KB
Mono
8 bpp
480KB
512KB
496KB/--
16 bpp
960KB
2MB
2032K/1968K
Dual
Color
8 bpp
480KB
75KB
16 bpp
960KB
Mono
8 bpp
480KB
18.75KB
512KB
496KB/--
16 bpp
960KB
2MB
2032KB/1968KB
800 
×
 600
Single
Color
8 bpp
600KB
0KB
1KB/
117.19KB
2032KB/1920KB
16 bpp
1.2MB
Mono
8 bpp
600KB
16 bpp
1.2MB
Dual
Color
8 bpp
600KB
117.19KB
16 bpp
1.2MB
Mono
8 bpp
600KB
29.30KB
16 bpp
1.2MB