ST7032 datasheet(23/63 Pages) SITRONIX

23 / 63 page

ST7032

V1.4

2008/08/18

23/61

Function Set

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

N : Display line number control bit

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

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

DH : Double height font type control bit

When DH = " High " and N=

“Low”, display font is selected to double height mode(5x16 dot),RAM address

can only use 00H~27H.

When DH=

“High” and N= “High”, it is forbidden.

When DH = " Low ", display font is normal (5x8 dot).

EXT option pin connect to high

EXT option pin connect to low

Display Lines

Character Font

Display Lines

Character Font

5x8

5x16

5x8

Forbidden

2 line mode normal display (DH=0/N=1)

1 line mode with double height font (DH=1/N=0)

IS : normal/extension instruction select

When IS=

” High”, extension instruction be selected (refer extension instruction table)

When IS=

” Low”, normal instruction be selected (refer normal instruction table)

R/W

DB6

DB7

DB4

DB5

DB2

DB3

DB0

DB1

ST7032 Datasheet(PDF) 23 Page - Sitronix Technology Co., Ltd.

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