MSM6562B 데이터 시트보기 (PDF) - Oki Electric Industry

부품명

상세내역

제조사

MSM6562B

DOT MATRIX LCD CONTROLLER DRIVER

Oki Electric Industry 

¡ Semiconductor

MSM6562B-xx

3. Address Counter (ADC)

The address counter (ADC) allocates the address for the DD RAM and CG RAM and also for the

cursor display.

When the instruction code for the DD RAM address or CG RAM address setting is input to the

IR, after deciding whether it is the DD RAM or CG RAM, the address code is transferred from

the IR to the ADC. After writing (reading) the display data to (from) the DD RAM or CG RAM,

the ADC is automatically incremented (decremented) by 1 as its internal operation.

The data of the ADC is output to DB0 - DB6 under the conditions that R/W = "H", RS0 = "L", RS1

= "H" and BF = "L".

4. Timing Generator Circuit

This circuit generates timing signals used for internal operations upon receipt of CPU instruc-

tion. It also generates timing signals for activating such internal circuits as the DD RAM, CG RAM

and CG ROM.

It is so designed that the internal operation caused by accessing from the CPU will not interfere

with the internal operation caused by the LCD display.

Consequently, when data is written from the CPU to DD RAM no ill effect, e.g., flickering occurs

in portions other than the display where the data is written.

In addition, the circuit generates transfer signals to the character extension IC (MSM5259).

13/50

Share Link: