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Número de pieza

componentes Descripción

Fabricante

PG12864LRU-ORA-H-S0

LCD Module

Powertip Technology 

NO.PG12864LRU-ORA-H Rev:0

RE RS D7 D6 D5 D4

D3

D2

D1

D0

0

1

1

0

0

1 REV NLIN SWAP REF

(At the time of reset: (REV, NLIN, SWAP, REF)=0H, read address: 9H)

Various control of display is set up.

(I) REF Command

When MPU accesses to the Graphic Display RAM, the relationship between X address and write data is

normalized or reversed.

Therefore, the order of segment driver output can be reversed by register setting, lessening the limitation of

IC location in assembling into the LCD panel.

ACCESS FROM MPU

REF

X ADDRESS

D7~D0

0

NH

D0(LSB)

D7(MSB)

1

NH

D0(LSB)

D7(MSB)

INTERNAL ACCESS

X ADDRESS

NH

0FH-NH

D7-D0

(LSB)

(MSB)

(MSB)

(LSB)

DDRRESPONDING

SEG OUTPUT

SEG(8*NH) Output

SEG(8*NH+7) Output

SEG(8*(0F-NH)+7) Output

SEG(8*(0F-NH)) Output

When using this command. Output of Segment Display Circuits are set as below.

However the order of D0->D7 are not changed.

ACCESS FROM MPU

REF

X ADDRESS D7~D0

INTERNAL ACCESS

X ADDRESS D7-D0

DDRRESPONDING

SEG OUTPUT

0

00H

D0(LSB)

D7(MSB)

00H

D0(LSB)

D7(MSB)

D7->D0

SEGS0->SEGS7

0

01H

D0(LSB)

D3(MSB)

01H

D0(LSB)

D3(MSB)

D0~D3

SEGS8->SEGS11

1

0FH

D0(LSB)

D7(MSB)

00H

D0(LSB)

D7(MSB)

D0->D7

SEGS0->SEGS7

1

H0E

D0(LSB)

D3(MSB)

01H

D0(LSB)

D3(MSB)

D0->D3

SEGS8->SEGS11

When REF=”1”,please set X address of Segment Display Circuits like below.

00H->0FH

01H->0EH

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DISPLAY DEVICES FOR BETTER ELECTRONIC DESIGN

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