RCM2122R 데이터 시트보기 (PDF) - ROHM Semiconductor

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RCM2122R

16 character × 1 line COG module

ROHM Semiconductor 

Liquid Crystal Displays

!Initializing by instruction

Power on

Initializing is done

No display

Wait for more than 15ms

after VCC reach to 4.5V

Function set

Wait for more than 4.1ms

Function set

Wait for more than 100µs

Function set

Function set

Dispaly OFF

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

000011****

Interface is 8bits long

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

000011****

Interface is 8bits long

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

000011****

Interface is 8bits long

Busy flag check is not possible at previous step,

but it is possible at further step.

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

0000111***

Set up 8bits bus mode / addressing mode 2

0 00 00 01 00 0

Dispaly clear

0 00 00 00 00 1

Entry mode set

0 00 00 00 11 0

It is the case that address become +1 and cursor shifts

to right during data write to DD RAM / CG RAM.

Data write to CG RAM / DD RAM

other necesary instruction set

RCM2122R

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