NJU6631ACH 데이터 시트보기 (PDF) - Japan Radio Corporation

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NJU6631ACH

16-CHARACTER 1-LINE DOT MATRIX LCD CONTROLLER DRIVER

Japan Radio Corporation  

NJU6631A

(3-3) Initialization by instruction

If the power supply conditions for the correct operation of the internal reset circuits are not met, the

NJU6631A must be initialized by the instruction.

(a) Initialization by Instruction in 8-bit interface

Power On

↓

Initialized.

No display appears.

Wait more than 15ms

after VDD rises to 4.5V

↓

Function Set

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Function Set

0 0 0 0 1 1 * * * * (8-bit interface length)

↓

Wait more than 4.1ms

↓

Function Set

Function Set

0 0 0 0 1 1 * * * * (8-bit interface length)

↓

Wait more than 100us

↓

Function Set

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Function Set

0 0 0 0 1 1 * * * * (8-bit interface length)

Busy Flag(BF) can not be

checked before this step, but

it can be checked after this

step.

↓

After this step, busy flag(BF)

check or longer waiting

time than each instruction

execution time is required.

Function Set

↓

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Set the 8-bit operation, 16-

0 0 0 0 1 1 1 * 0 0 Character 1-Line, Pin

Configuration mode A,

Addressing Mode 2.

Display Off

↓

0000001000

Display Clear

0000000001

↓

Entry Mode Set

↓

Example for set address

increment and cursor right

0 0 0 0 0 0 0 1 1 0 shift when the data write to

the DD or CG RAM.

Write data to the DD/CG RAM and set

the Instruction

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