msm9201-01 Oki Semiconductor, msm9201-01 Datasheet - Page 17

• Manufacturer Part Number: msm9201-01
• Description: Fluorescent Display Tube Controller Driver
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Description of Commands and Functions
1. DCRAM data write
DCRAM (Data Control RAM) has 5-bit addresses to store character code of CGROM and
CGRAM.
The character code specified in DCRAM is converted to a 5¥7 dot matrix character pattern via
CGROM or CGRAM.
The DCRAM can store 24 characters.
[Command format]
To specify the character code of CGROM and CGRAM continuously to the next address, specify
only character codes as follows.
Since the addresses of DCRAM are automatically incremented, they do not need to be specified.
2nd byte
1st byte
(2nd)
(1st)
CGRAM.)
(Specifies the address (00H to 1FH) of DCRAM and writes the character code of CGROM and
LSB
LSB
B0 B1 B2 B3 B4 B5 B6 B7
X0 X1 X2 X3 X4
B0 B1 B2 B3 B4 B5 B6 B7
C0 C1 C2 C3 C4 C5 C6 C7
1
0
MSB
MSB
0
: selects DCRAM data write mode and specifies DCRAM
: specifies character code of CGROM and CGRAM.
address.
(Ex: Specifies DCRAM address 00H)
(written into DCRAM address 00H)
PEDL9201-03
MSM9201-01
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