ML9208A-XXMB Просмотр технического описания (PDF) - LAPIS Semiconductor Co., Ltd.

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ML9208A-XXMB

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

LAPIS Semiconductor Co., Ltd. 

FEDL9208A-02

ML9208A-xx

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]

1st byte

(1st)

2nd byte

(2nd)

LSB

MSB

B0 B1 B2 B3 B4 B5 B6 B7

X0 X1 X2 X3 1 1 0 0

LSB

MSB

B0 B1 B2 B3 B4 B5 B6 B7

C0 C1 * * * * * *

: selects ADRAM data write mode and specifies ADRAM

address

(Ex: specifies ADRAM address 0H)

: sets symbol data

(written into ADRAM address 0H)

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

The address of ADRAM is automatically incremented. Specification of addresses is therefore unnecessary.

2nd byte

(3rd)

2nd byte

(4th)

2nd byte

(17th)

2nd byte

(18th)

LSB

MSB

B0 B1 B2 B3 B4 B5 B6 B7

C0 C1 * * * * * *

LSB

MSB

B0 B1 B2 B3 B4 B5 B6 B7

C0 C1 * * * * * *

LSB

MSB

B0 B1 B2 B3 B4 B5 B6 B7

C0 C1 * * * * * *

LSB

MSB

B0 B1 B2 B3 B4 B5 B6 B7

C0 C1 * * * * * *

: sets symbol data

(written into ADRAM address 1H)

: sets symbol data

(written into ADRAM address 2H)

: sets symbol data

(written into ADRAM address FH)

: 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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