S1D13700F02 Epson Electronics America, Inc., S1D13700F02 Datasheet - Page 98

• Manufacturer Part Number: S1D13700F02
• Description: Embedded Memory Graphics Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 98
13.2.1 CGRAM Addressing Example
S1D13700F02
X42D-A-001-01
Example 1: Define a pattern for the “A” in Figure 12-1 on page 76. The CGRAM table
As the character codes in Figure 13-2 “On-Chip Character Codes,” on page 99 show, codes
80h to 9Fh and E0h to FFh are allocated to the CGRAM and can be used as desired. 80h is
the first code for the CGRAM. As characters cannot be used if only using graphics mode,
there is no need to set the CGRAM data.
CGRAM ADR
MWRITE
CSRDIR
CSRW
P16
P1
P2
P1
P2
P2
P3
P4
P5
P6
P7
P8
P9
P
↓
start address is 4800h. The character code for the defined pattern is 80h
(the first character code in the CGRAM area).
5Ch
4Ch Set cursor shift direction to right
Table 13-3 Character Data Example
00h
40h
46h
00h
48h
42h
70h Write ROW 0 data
88h Write ROW 1 data
88h Write ROW 2 data
88h Write ROW 3 data
F8h Write ROW 4 data
88h Write ROW 5 data
88h Write ROW 6 data
00h Write ROW 7 data
00h Write ROW 8 data
00h Write ROW 15 data
↓
Revision 1.01
Reverse the CGRAM address calculation to calculate SAG
CGRAM start address is 4800h
↓
Epson Research and Development
Hardware Functional Specification
Vancouver Design Center
Issue Date: 2005/11/29