ST7066 데이터 시트보기 (PDF) - Unspecified

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ST7066

Dot Matrix LCD Controller/Driver

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ST7066

DL : Interface data length control bit

When DL = "High", it means 8-bit bus mode with MPU.

When DL = "Low", it means 4-bit bus mode with MPU. So to speak, DL is a signal to select

8-bit or 4-bit bus mode.

When 4-bit bus mode, it needs to transfer 4-bit data by two times.

N : Display line number control bit

When N = "Low", it means 1-line display mode.

When N = "High", 2-line display mode is set.

F : Display font type control bit

When F = "Low", it means 5 x 8 dots format display mode

When F = "High", 5 x11 dots format display mode.

No. of Display

N

F

Character Font Duty Factor

Lines

L

L

1

5x8

1/8

L

H

1

5x11

1/11

H

x

2

5x8

1/16

!" Set CGRAM Address

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

Code 0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0

Set CGRAM address to AC.

This instruction makes CGRAM data available from MPU.

!" Set DDRAM Address

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

Code 0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0

Set DDRAM address to AC.

This instruction makes DDRAM data available from MPU.

When 1-line display mode (N = 0), DDRAM address is from "00H" to "4FH".

In 2-line display mode (N = 1), DDRAM address in the 1st line is from "00H" to "27H", and

DDRAM address in the 2nd line is from "40H" to "67H".

V1.2

16

2000/6/13

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