Cirrus Logic EP93xx User Manual
Page 184
7-2
DS785UM1
Copyright 2007 Cirrus Logic
Raster Engine With Analog/LCD Integrated Timing and Interface
EP93xx User’s Guide
7
7
7
The Raster engine also supports several hardware blinking modes, and 8-bit addressed
lookup tables for grayscale or expanding color depth. The Raster also includes a video
stream signature generator for built in self-testing.
Examples for some of the possible output modes are shown in
Table 7-1. Raster Engine Video Mode Output Examples
Display
Type
Horizontal
Resolution
x
Vertical
Resolution
Video
Clock
Freq.
(MHz)
Frame
Buffer
Storage
Format
Display
Data
Format
Pixels
Per
Shift
Clock
Pixel
Shift
Clock
Freq.
(MHz)
Vertical
Frame
Rate
(Hz)
Notes
VFD
128 x 32
2
4 bpp
Monochrome
8
0.25
400
LCD
128 x 64
2
4 bpp
Monochrome
4
0.5
230
Parallel
Command
Word
interface
LCD
256 x 128
2
4 bpp
Monochrome
4
0.5
60
-
“QVGA” TFT
LCD
320 x 234
6.4
8 bpp
Analog
1
6.4
80
-
QVGA STN
LCD
320 x 240
4
4-bit RGB
4-bit RGB
1
4
50
-
HVGA STN
LCD
640 x 240
8
4-bit RGB
4-bit RGB
1
8
50
-
“VGA” DC
Plasma
640 x 400
16
4 bpp
Monochrome
4
4
60
-
VGA EL
640 x 480
24
4 or 8 bpp
Grayscale
8
3
75
-
VGA STN
LCD
640 x 480
24
8 or 16 bpp
18-bit RGB
1
24
75
-
VGATFT
LCD
640 x 480
24
8, 16, or 24
bpp
18-bit RGB
1
24
75
-
VGA CRT
640 x 480
32
8, 16, or 24
bpp
Analog
1
NA
85
External
DAC
SVGA TFT
LCD
800 x 600
40
8, 16, or 24
bpp
18-bit RGB
1
40
80
-
SVGA CRT
800 x 600
50
8, 16, or 24
bpp
Analog
1
NA
85
External
DAC
XGA CRT
1024 x 768
75
8, 16,
or
24 bpp
Analog
1
NA
80
External
DAC
SXGA TFT
LCD
1280 x 1024
85
8, 16, or 24
bpp
18 or 24 RGB
1
85
60
24-bits