ST7032 datasheet(26/63 Pages) SITRONIX

26 / 63 page

ST7032

V1.4

2008/08/18

26/61

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Instruction Step

Bias selection/Internal OSC frequency adjust

BS: bias selection

When BS=

”High”, the bias will be 1/4

When BS=

”Low”, the bias will be 1/5

BS will be invalid when external bias resistors are used (OPF1=1, OPF2=1)

F2,F1,F0 : Internal OSC frequency adjust

When CLS connect to high, that instruction can adjust OSC and Frame frequency.

Internal frequency adjust

Frame frequency ( Hz )

(2 line mode)

VDD = 3.0 V

VDD = 5.0 V

122

120

131

133

144

149

161

167

183

192

221

227

274

277

347

Set ICON RAM address

Set ICON RAM address to AC.

This instruction makes ICON data available from MPU.

When IS=1 at Extension mode,

The ICON RAM address is from "00H" to "0FH".

Power/ICON control/Contrast set(high byte)

Ion: set ICON display on/off

When Ion = "High", ICON display on.

When Ion = "Low", ICON display off.

Bon: switch booster circuit

Bon can only be set when internal follower is used (OPF1=0, OPF2=0).

When Bon = "High", booster circuit is turn on.

When Bon = "Low", booster circuit is turn off.

C5,C4 : Contrast set(high byte)

C5,C4,C3,C2,C1,C0 can only be set when internal follower is used (OPF1=0,OPF2=0).They can more

precisely adjust the input reference voltage of V0 generator. The details please refer to the supply voltage

for LCD driver.

R/W

DB6

DB7

DB4

DB5

DB2

DB3

DB0

DB1

AC2

AC3

AC0

AC1

R/W

DB6

DB7

DB4

DB5

DB2

DB3

DB0

DB1

BON

ION

R/W

DB6

DB7

DB4

DB5

DB2

DB3

DB0

DB1

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