MSM9200-XX datasheet(16/34 Pages) OKI

Part #	MSM9200-XX

Description	5 X 7 Dot Character X 16-Digit Display Controller/Driver with Character RAM

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Manufacturer	OKI [OKI electronic componets]

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MSM9200-xx

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Description of Commands and Functions

1. DCRAM data write 1

(Specifies the address (00H to 0FH) of DCRAM and writes the character code of CGROM and

CGRAM.)

2. DCRAM data write 2

(Specifies the address (10H to 1FH) of DCRAM and writes the character code of CGROM and

CGRAM.)

3. DCRAM data write 3

(Specifies the address (20H to 2FH) of DCRAM and writes the character code of CGROM and

CGRAM.)

4. DCRAM data write 4

(Specifies the address (30H to 3FH) of DCRAM and writes the character code of CGROM and

CGRAM.)

DCRAM (Data Control RAM) has a 6-bit address to store character code of CGROM and

CGRAM. (4 bits can be set by the user and the 2 bits on the MSB side are automatically set.)

The character code specified by DCRAM is converted to a 5¥7 dot matrix character pattern via

CGROM or CGRAM.

The capacity is 64¥8 bits, which can store 64 characters.

Note: The addresses 00H to 3FH of DCRAM are automatically incremented.

[Command format]

X0 X1 X2 X3

1000

B0 B1 B2 B3 B4 B5 B6 B7

1st byte

(1st)

LSB

MSB

C0 C1 C2 C3 C4 C5 C6 C7

B0 B1 B2 B3 B4 B5 B6 B7

2nd byte

(2nd)

LSB

MSB

: selects DCRAM data write mode and specifies DCRAM

address

(Ex: Specifies DCRAM address 00H)

: specifies character code of CGROM and CGRAM

: written into DCRAM address 00H

To specify the character code of CGROM and CGRAM continuously to the next address, specify

only character code as follows.

The addresses of DCRAM are automatically incremented. Specification of an address is

unnecessary.

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MSM9200-XX Datasheet(PDF) 16 Page - OKI electronic componets

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