MSM9005-XX OKI [OKI electronic componets], MSM9005-XX Datasheet - Page 16

• Manufacturer Part Number: MSM9005-XX
• Description: DOT MATRIX LCD CONTROLLER WITH 8-DOT COMMON DRIVER AND 65-DOT SEGMENT DRIVER
• Manufacturer: OKI [OKI electronic componets]

¡ Semiconductor
Command Description
1. Load pointer address command (LPA command)
[How to transfer LPA command and CG ROM code data]
LPA
command
CG ROM
code data
CG ROM
code data
CG ROM
code data
CG ROM
code data
This command is used to set the value of the address pointer. Execute this command before
transferring other commands, CG ROM code data and arbitrator display data.
After this command is executed, setting the C/D pin from "1" to "0" enables writing CG ROM
code data to CG ROM address RAM (CGA RAM) and arbitrator display data to arbitrator
RAM (ABRAM). After CG ROM code data or arbitrator display data is transferred, the
address pointer is automatically incremented (+1), and CG ROM code data and arbitrator
display data can be transferred continuously.
*: Don't care
D8 D7 D6 D5 D4 D3 D2 D1
D8 D7 D6 D5 D4 D3 D2 D1
D8 D7 D6 D5 D4 D3 D2 D1
D8 D7 D6 D5 D4 D3 D2 D1
D8 D7 D6 D5 D4 D3 D2 D1
C7 C6 C5 C4 C3 C2 C1 C0
C7 C6 C5 C4 C3 C2 C1 C0
C7 C6 C5 C4 C3 C2 C1 C0
C7 C6 C5 C4 C3 C2 C1 C0
1
1
*
0
(Repeats eight times.)
0
0
0
0
Specify address pointer value
(Example: Set address pointer value to 00H.)
CG ROM code data is written to CGA RAM address 00H, and
the character corresponding to the specified CG ROM code
is displayed in segments 1 to 5.
After this data transfer is executed, the address pointer value
becomes 01H.
CG ROM code data is written to CGA RAM address 01H, and
the character corresponding to the specified CG ROM code
is displayed at segments 6 to 10.
After this data transfer is executed, the address pointer value
becomes 02H.
CG ROM code data is written to CGA RAM address 02H, and
the character corresponding to the specified CG ROM code
can be displayed at segments 11 to15.
After this data transfer is executed, the address pointer value
becomes 03H.
CG ROM code data is written to CGA RAM address 0BH, and
the character corresponding to the specified CG ROM code
can be displayed at segments 56 to 60.
After this data transfer is executed, the address pointer value
becomes 0CH.
FEDL9005-03
MSM9005-xx
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