S1D12200 Epson Electronics America, Inc., S1D12200 Datasheet - Page 134

• Manufacturer Part Number: S1D12200
• Description: S1d12000 Series Lcd Driver Ic Technical Manual Technical Manual
• Manufacturer: Epson Electronics America, Inc.

S1D12300 Series
Character Generator RAM (CG RAM)
The S1D12300 Series is provided with a CG RAM that permits user-programming character patterns so that they can be
displayed with a high degree of freedom for signal display.
Before using the CG RAM, select the use of CG RAM by the System Set command.
The capacity of the CG RAM is 140 bits and arbitrary patterns of 4 types consisting of 5 7 dots can be registered.
The relationship among CG RAM patterns, CG RAM addresses, and character codes is shown below.
Character code
4–30
00H
02H
01H
03H
RAM address
00H to 06H
10H to 16H
08H to 0EH
18H to 1EH
C
D
A
B
E
0
1
2
3
4
5
6
8
9
CGRAM data (character pattern)
D7
* * *
* * *
* * *
* * *
* * *
* * *
* * *
* * *
* * *
* * *
* * *
* * *
* * *
* * *
Unused
EPSON
0
1
1
0
0
0
1
0
0
0
0
0
1
1
Character data
1
0
0
1
0
0
1
0
0
1
1
1
1
1
1: Display
0: Non-display
1
0
0
1
0
0
1
1
1
1
1
1
1
1
1
0
0
1
0
0
1
0
0
1
1
1
1
1
D0
1
0
0
1
1
1
0
0
0
0
0
0
1
1
Display
Rev. 1.9