Epson Research and Development
Page 205
Vancouver Design Center
Table 15-1: Minimum DRAM Size Required for SwivelView™
Display
Mode
Min. Image Dual Panel
Buffer Size Buffer Size DRAM Size
Minimum
Ink/Cursor
Buffer Size
Ink/Cursor
Location
Panel Size
Panel Type
8 bpp
15/16 bpp
8 bpp
240KB
Color
480KB
0KB
320 × 240
Single
Single
Dual
18.75KB/1KB
488KB/511KB
240KB
480KB
480KB
960KB
480KB
960KB
480KB
960KB
480KB
960KB
600KB
1.2MB
600KB
1.2MB
600KB
1.2MB
600KB
1.2MB
512KB
Mono
Color
Mono
Color
Mono
Color
Mono
Color
Mono
15/16 bpp
8 bpp
--/511KB
1968KB/2047KB
--/511KB
15/16 bpp
8 bpp
2MB
0KB
512KB
15/16 bpp
8 bpp
1968KB/2047KB
640 × 480
75KB/1KB
2MB
75KB
1896KB/1968KB
15/16 bpp
8 bpp
512KB
--/488KB
18.75KB
15/16 bpp
8 bpp
1952KB/2024KB
15/16 bpp
8 bpp
Single
Dual
0KB
1928KB/2047KB
15/16 bpp
8 bpp
2MB
800 × 600
117.19KB/1KB
117.19KB
29.30KB
1808KB/1928KB
1896KB/2016KB
15/16 bpp
8 bpp
15/16 bpp
Where KB = 1024 bytes and MB = 1024KB
15.2.3 Limitations
The following limitations apply to 90° SwivelView™:
• Only 8/15/16 bpp modes are supported – 4 bpp mode is not supported.
• Hardware cursor and ink images are not rotated – software rotation must be used.
SwivelView™ Enable bit 0 must be set to 0 when the user is accessing the Hardware
Cursor or the Ink Layer buffer.
• CRT/TV mode is not supported. SwivelView™ Enable bit 0 must be set to 0 when the
user is accessing the CRT/TV display buffer.
• 90° SwivelView™ does not support BitBlts.
Hardware Functional Specification
Issue Date: 01/02/06
S1D13506
X25B-A-001-10
EPSON [ EPSON COMPANY ]
