S1D12200 Epson Electronics America, Inc., S1D12200 Datasheet - Page 236

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

S1D12400 Series
Character Generator RAM (CGRAM)
The S1D12400 series is provided with a CGROM that permits the user to program character patterns so as to attain a
character display with a high degree of freedom. When using the CGRAM, select Use of CGRAM by the system set
command. The CGRAM capacity is 240 bits having a structure of 5
registered.
The relation among CGRAM character patterns, CGRAM addresses, and character codes is shown below.
The character size of 5 8 can also be set. In this case, use the RAM of *7H, *FH of the CGRAM address. However,
when the under-bar cursor is used, the data of *7H, *FH is displayed in reverse form.
6–48
Character
01H
03H
05H
code
00H
02H
04H
(CGRAM selection: RE = 1)
(08H to 0FH)
(18H to 1FH)
(28H to 2FH)
RAM Address
(00H to 07H)
(10H to 17H)
(20H to 27H)
C
D
E
0
1
2
3
4
5
7
8
9
A
B
F
6
D7
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Unused
CGRAM data (character pattern)
EPSON
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
0
1
1
0
0
0
0
0
0
0
0
0
1
1
0
1
Character data
1
0
0
1
0
0
0
0
0
1
1
1
1
1
0
1
1: Display
0: No display
8 dots and optional 6 types of patterns can be
1
0
0
1
0
0
0
1
1
1
1
1
1
1
0
1
1
0
0
1
0
0
0
0
0
1
1
1
1
1
0
1
D0 SEG
1
0
0
1
1
1
0
0
0
0
0
0
1
1
0
0
Character display
Rev. 2.1