Epson S1D13700 User's & Technical Manual page 54

contiguous addresses in the display memory space. Therefore, the CG RAM addresses to which to
write data must be calculated as follows:
• Add addresses the same way as described above (M1 = 0).
• Change bit D6 in one character code from 1 to 0 when adding addresses.
Example of CG RAM definition (method of storing data) (See Figure 4-9 "Example of display
memory mapping" on page 63.)
Conditions
• The pattern to define: Pattern A (8 x 16 dots per font) shown in Figure 4-1 "Character display
([FX] ≤ 8 dots)" on page 45.
• Start address of the CG RAM table: 4800H
• Character code of defined pattern: 80H (first character code in CG RAM area)
Setting list
CG RAM ADR
P1
P2
CSRDIR
CSRW
P1
P2
MWRITE
P1
P2
P3
P4
P5
P6
P7
P8
P9
P16
S1D13700 Technical Manual
5CH
Set SAG after calculating it by performing the method of CG RAM
00H
address calculation in reverse.
40H
4CH Shift to the right
46H
00H CG RAM area from 4800H
48H
42H
Write data for row 0
70H
Write data for row 1
88H
Write data for row 2
88H
Write data for row 3
88H
Write data for row 4
F8H
Write data for row 5
88H
88H Write data for row 6
00H Write data for row 7
Write data for row 8
00H
00H Write data for row 15
EPSON
4: FUNCTION DESCRIPTION
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