SED1330F Datasheet, PDF (139/148 Pages) List of Unclassifed Manufacturers – LCD Controller ICs

9.6 – 9.6.2
9.6 16 × 16-dot Graphic Display
9.6.1 Command Usage
This example shows how to display 16 × 16-pixel
characters. The command sequence is as follows:
CSRW Set the cursor address.
CSRDIR Set the cursor auto-increment di-
rection.
MWRITE Write to the display memory.
9.0 Application Notes
9.6.2 Kanji Character Display
The program for writing large characters operates as
follows:
1. The microprocessor reads the character data
from its ROM.
2. The microprocessor sets the display address
and writes to the VRAM. The flowchart is
shown in Figure 91.
A0 = 0
O₈ O₇ O₆ O₅ O₄ O₃ O₂ O₁
0H
(1)
1H
(3)
2H
(5)
3H
(7)
4H
(9)
5H
(11)
6H
(13)
7H
(15)
8H
(17)
9H
(19)
AH
(21)
BH
(23)
CH
(25)
DH
(27)
EH
(29)
FH
(31)
1st column
Scan address A1 to A4
A0 = 1
O8 O7 O6 O5 O4 O3 O2 O1
(2)
(4)
(6)
(8)
(10)
(12)
(14)
(16)
(18)
(20)
(22)
(24)
(26)
(28)
(30)
(32)
2nd column
CG ROM output
(n) shows the CG ROM data
readout order
(Kanji ROM pattern)
(6)
(4)
(2)
(19)
(17)
(15)
(13)
(11)
(9)
(7)
(5)
(3)
(1)
Data held in the microprocessor memory
2nd column
(4)
memory area
(2)
1st column
(3)
memory area
(1)
Data written into the SED1330 display memory
Figure 91. Graphics address indexing
268-0.4 _{S-MOS Systems, Inc. • 2460 North First Street • San Jose, CA 95131 • Tel: [phone] • Fax: [phone]}