S1D13700F01 Epson Electronics America, Inc., S1D13700F01 Datasheet - Page 110

• Manufacturer Part Number: S1D13700F01
• Description: Embedded Memory Graphics Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 110
15.1.3 Display Mode Setting Example 1: Combining Text and Graphics
S1D13700F01
X42A-A-002-04
Conditions
• 320 × 200 pixels, single panel drive (1/200 duty cycle)
• First layer: text display
• Second layer: graphics display
• 8 × 8-pixel character font
• CGRAM not required
Display memory allocation
• First layer (text): 320 ÷ 8 = 40 characters per line, 200 ÷ 8 = 25 lines. Required memory
• Second layer (graphics): 320 ÷ 8 = 40 characters per line, 200 ÷ 1 = 200 lines. Required
size = 40 × 25 = 1000 bytes.
memory size = 40 × 200 = 8000 bytes.
Figure 15-2 Character Over Graphics Layers
0000h
1st character layer
(1000 bytes)
03E8h
2nd graphics layer
(8000 bytes)
Revision 4.05
03E7h
2327h
Epson Research and Development
Hardware Functional Specification
Vancouver Design Center
Issue Date: 2005/12/13