Epson Research and Development Page 121
Vancouver Design Center
Hardware Functional Specification S1D13504
Issue Date: 01/01/30 X19A-A-002-18
1. Must set N
RC
= 4MCLK. See REG[22h], “Performance Enhancement Register 0”.
2. 800x600 @ 16 bpp requires 2M bytes of display buffer for all display types.
3. 800x600 @ 8 bpp on a dual color panel requires 2M bytes of display buffer if the half frame
buffer is enabled.
4. Optimum frame rates for panels range from 60Hz to 150Hz. If the maximum refresh rate is too
high for a panel, MCLK should be reduced or PCLK should be divided down.
5. Half Frame Buffer disabled by REG[1Bh] bit 0.
60ns
EDO-DRAM
MClk = 33MHz
N
RC
= 4
N
RP
= 1.5
N
RCD
= 2
• Single Panel.
• CRT.
• Dual Mono/Color Panel with Half
Frame Buffer Disabled.
5
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual
Mono/Color Panel with Half Frame
Buffer Disabled.
5
800x600
2
1/2/4/8
33
32 66 55
16 56 65 55
640x480
1/2/4/8 32 101 78
16 56 98 78
640x240
1/2/4/8 32 203 -
16 56 200 -
480x320
1/2/4/8 32 200 -
16 56 196 -
320x240
1/2/4/8 32 388 -
16 56 380 -
• Dual Color with Half Frame Buffer
Enabled.
• Dual Mono with Half Frame Buffer
Enabled.
800x600
2,3
1/2/4/8 16.5 32 66 -
16 11 32 43 -
640x480
1/2/4/8 16.5 32 103 -
16 11 32 68 -
60ns
FPM-DRAM
MClk = 25MHz
N
RC
= 4
N
RP
= 1.5
N
RCD
= 2
• Single Panel.
• CRT.
• Dual Mono/Color Panel with Half
Frame Buffer Disabled.
5
• Simultaneous CRT + Single Panel.
• Simultaneous CRT + Dual
Mono/Color Panel with Half Frame
Buffer Disabled.
5
800x600
2
1/2/4/8
25
32 50 -
16 56 48 -
640x480
1/2/4/8 32 77 60
16 56 75 60
640x240
1/2/4/8 32 142 -
16 56 136 -
480x320
1/2/4/8 32 152 -
16 56 145 -
320x240
1/2/4/8 32 294 -
16 56 280 -
• Dual Mono with Half Frame Buffer
Enabled.
800x600
2
1/2/4/8/16 12.5 32 50 -
640x480 1/2/4/8/16 12.5 32 77 -
640x400 1/2/4/8/16 12.5 32 92 -
• Dual Color with Half Frame Buffer
Enabled.
800x600
2,3
1/2/4/8 12.5 32 50 -
16 8.33 32 33 -
640x480
1/2/4/8 12.5 32 77 -
16 8.33 32 51 -
Table 11-3: Example Frame Rates
DRAM Type
1
(Speed Grade)
Display Resolution
Color
Depth
(bpp)
Maximum
Pixel
Clock
(MHz)
Minimum
Panel
HNDP(T
s
)
Maximum Frame
Rate (Hz)
Panel
4
CRT
