Common Display Memory Requirements For Lcd Panel Sizes - Epson S1D13503 Series Technical Manual

EPSON

4.3 Common Display Memory Requirements for LCD Panel Sizes

The following is a list of memory requirements and memory maps for common LCD resolutions.
Note that the memory required for 640 × 480 with 4 or 8 bits/pixel exceeds 128K and is therefore
not supported on the S1D13503.
Display
Resolution
320 × 240
480 × 240
640 × 200
640 × 480
Figure 4-1 Memory Map Example for 320 × 240 LCD Panel with 4 Colors/Gray Shades
Figure 4-2 Memory Map Example for 320 × 240 LCD Panel with 256 Colors
Figure 4-3 Memory Map Example for 640 × 200 LCD Panel with 16 Colors/Gray Shades
2-26
Table 4-1 Memory Size Requirements
Pixel Storage
Colors/
Bits/Pixel
Gray Shades
1 2
2 4
4 16
8 256
1 2
2 4
4 16
8 256
1 2
2 4
4 16
8 256
1 2
2 4
4 16
8 256
Offset
(hex)
0000 Scan Line 0
0050 Scan Line 1
4A60 Scan Line 238
4AB0 Scan Line 239
Offset
(hex)
0000 0000 Scan Line 0
0000 0140 Scan Line 1
0001 2980 Scan Line 238
0001 2AC0 Scan Line 239
Offset
(hex)
0000 Scan Line 0
0140 Scan Line 1
F780 Scan Line 198
F8C0 Scan Line 199
Memory Requirements
Bytes Hex
9,600 0000 2580
19,200 0000 4B00
38,400 0000 9600
76,800 0001 2C00
14,400 0000 3840
28,800 0000 7080
57,600 0000 E100
115,200 0001 C200
16,000 0000 3E80
32,000 0000 7D00
64,000 0000 FA00
128,000 0001 F400
38,400 0000 9600
76,800 0001 2C00
N/A N/A
N/A N/A
Offset
(hex)
004F
009F
4AAF
4AFF
Offset
(hex)
0000 013F
027F
0001 2ABF
0001 2BFF
Offset
(hex)
013F
027F
F8BF
F9FF
S18A-G-002-02