Specifications

4–30 EPSON Rev. 1.9
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 RAM address
CGRAM data (character pattern) Display
D7 D0
00H 00H to 06H 0
***
01111
02H 10H to 16H 1
***
10000
2
***
10000
3
***
01111
4
***
00001
5
***
00001
6
***
11110
01H 08H to 0EH 8
***
00100
03H 18H to 1EH 9
***
00100
A
***
01110
B
***
01110
C
***
01110
D
***
11111
E
***
11111
Unused Character data
1: Display
0: Non-display