ST7070 datasheet(17/51 Pages) SITRONIX

17 / 51 page

ST7070

V1.4

17/51

2009/04/29

Instruction Description

EXT=0 or 1

Clear Display

Clear all the display data by writing "20H" (space code) to all DDRAM address, and set DDRAM address to

"00H" into AC (address counter). Return cursor to the original status, namely, bring the cursor to the left edge

on first line of the display. Make entry mode increment (I/D = "1").

Return Home

Return Home is cursor return home instruction. Set DDRAM address to "00H" into the address counter.

Return cursor to its original site and return display to its original status, if shifted. Contents of DDRAM does

not change.

Display ON/OFF

Control display/cursor/blink ON/OFF 1 bit register.

D : Display ON/OFF control bit

When D = "High", entire display is turned on.

When D = "Low", display is turned off, but display data is remained in DDRAM.

C : Cursor ON/OFF control bit

When C = "High", cursor is turned on.

When C = "Low", cursor is disappeared in current display, but I/D register remains its data.

P : Font table selection bit

When P = "Low", it select page 1 of font table.(set DDRAM data bit-8=0)

When P = "High", it select page 2 of font table(set DDRAM data bit-8=1)

Code

DB7

DB6

DB5

DB4

DB1

DB2

DB3

DB0

Every

32 frames

Alternating

display

Cursor

ST7070 데이터시트(PDF) 17 Page - Sitronix Technology Co., Ltd.