參數(shù)資料
型號: S1D13700
廠商: 愛普生(中國)有限公司
英文描述: Embedded Memory Graphics LCD Controller
中文描述: 嵌入式內(nèi)存圖形液晶顯示控制器
文件頁數(shù): 100/134頁
文件大小: 1000K
代理商: S1D13700
Page 100
Epson Research and Development
Vancouver Design Center
S1D13700
X42A-A-001-00
Hardware Functional Specification
Issue Date: 2004/01/06
Revision 1.0
13.2.1 CGRAM Addressing Example
Example 1:Define a pattern for the “A” in Figure 12-1 on page 79. The CGRAM table
start address is 4800h. The character code for the defined pattern is 80h
(the first character code in the CGRAM area).
As the character codes in Figure 13-2 “On-Chip Character Codes,” on page 101 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.
Table 13-3 Character Data Example
CGRAM ADR
5Ch
Reverse the CGRAM address calculation to calculate SAG
P1
00h
P2
40h
CSRDIR
4Ch Set cursor shift direction to right
CSRW
46h
CGRAM start address is 4800h
P1
00h
P2
48h
MWRITE
42h
P
70h Write ROW 0 data
P2
88h Write ROW 1 data
P3
88h Write ROW 2 data
P4
88h Write ROW 3 data
P5
F8h Write ROW 4 data
P6
88h Write ROW 5 data
P7
88h Write ROW 6 data
P8
00h Write ROW 7 data
P9
P16
00h Write ROW 8 data
00h Write ROW 15 data
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