ML9206 datasheet(21/33 Pages) OKI

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¡ Semiconductor

ML9206-xx

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To specify symbol data continuously to the next address, specify only symbol data as follows.

The address of ADRAM is automatically incremented. Specification of the 1st byte is therefore

unnecessary.

3. ADRAM data write

(specifies address of ADRAM and writes symbol data)

ADRAM (Additional Data RAM) has a 2-bit address to store symbol data.

Symbol data specified by ADRAM is directly output without CGROM and CGRAM.

(The ADRAM can store 2 types of symbol patterns for each digit.)

The terminal to which the contents of ADRAM are output can be used as a cursor.

[Command format]

C0 C1

******

B0 B1 B2 B3 B4 B5 B6 B7

2nd byte

(2nd)

LSB

MSB

: sets symbol data

(written into ADRAM address 0H)

X0 X1 X2 X3

1100

B0 B1 B2 B3 B4 B5 B6 B7

1st byte

(1st)

LSB

MSB

: selects ADRAM data write mode and specifies ADRAM

address

(Ex: specifies ADRAM address 0H)

C0 C1

******

B0 B1 B2 B3 B4 B5 B6 B7

2nd byte

(3rd)

LSB

MSB

: sets symbol data

(written into ADRAM address 1H)

C0 C1

******

B0 B1 B2 B3 B4 B5 B6 B7

2nd byte

(4th)

LSB

MSB

: sets symbol data

(written into ADRAM address 2H)

C0 C1

******

B0 B1 B2 B3 B4 B5 B6 B7

2nd byte

(17th)

LSB

MSB

: sets symbol data

(written into ADRAM address FH)

C0 C1

******

B0 B1 B2 B3 B4 B5 B6 B7

2nd byte

(18th)

LSB

MSB

: sets symbol data

(ADRAM address 0H is rewritten.)

X0 (LSB) to X3 (MSB) : ADRAM addresses (4 bits: 16 characters)

C0 (LSB) to C1 (MSB): Symbol data (2 bits: 2-symbol data per digit)

* : Don't care

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