ml9289 Oki Semiconductor, ml9289 Datasheet - Page 13

• Manufacturer Part Number: ml9289
• Description: Vacuum Fluorescent Display Tube Controller Driver
• Manufacturer: Oki Semiconductor

FUNCTIONAL DESCRIPTION
Command List
When data is written to RAM (DCRAM, CGRAM, and ADRAM) continuously, addresses are internally
incremented automatically. Therefore it is not necessary to specify the 1st byte to write RAM data for the 2nd
and subsequent bytes.
Note: The test mode is used for inspection before shipment. It is not a user function.
Positional Relationship Between SEGn and ADn (one digit)
1 DCRAM data write
2 CGRAM data write
3 ADRAM data write
4 Display duty set
5 Number of digits set
6
All display lights
ON/OFF
Others (test mode)
Command
SEG14
SEG16
SEG15
SEG1
C13
SEG6
C15
C14
C0
C5
LSB
B0 B1 B2 B3 B4 B5 B6 B7 B0 B1
X0 X1 X2 X3
X0 X1 X2 X3
X0 X1 X2 X3
D0 D1 D2 D3
K0 K1 K2 K3
L
SEG10
H
SEG11
SEG12
SEG2
SEG5
C9
C10
C11
C1
C4
*
First byte
*
C8–15: Corresponds to the 3rd byte of the CGRAM data write command.
1
0
1
1
0
1
C0–7: Corresponds to the 2nd byte of the CGRAM data write
command.
0
1
1
0
1
1
0
0
0
1
1
1
MSB LSB
0
0
0
0
0
0
C0 C1 C2
C0 C1 C2
C8 C9 C10 C11 C12 C13 C14 C15 3rd byte
C0 C1
*
Xn : Address setting for each RAM
Cn : Character code setting for each RAM
Dn : Display duty setting
Kn : Setting of the number of display digits
H
L
: Don’t care
: All display lights ON setting
: All display lights OFF setting
B2
*
Second byte
C3
B3
C3
*
B4
C4
C4
*
B5
C5
C5
*
C6
C6
B6
*
FEDL9289-01
ML9289-xx
MSB
B7
C7
C7
*
2nd byte
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