ML9090-01- datasheet(13/38 Pages) OKI

Part #	ML9090-01-

Description	LCD Driver with Key Scanner and RAM

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Manufacturer	OKI [OKI electronic componets]

Direct Link	http://www.oki.com

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13 / 38 page

¡ Semiconductor

ML9090-01,-02

13/38

PEDL9090-02

Register List

RS R/W

Register number

Register

symbol

Register name

Data bits

3210

76543210

010000

KR

Key scan register

ST2 ST1 ST0

S4

S3

S2

S1

S0

1

1/0

0001

DRAM

Display data register

D7

D6

D5

D4

D3

D2

D1

D0

000010

XAD

X address register

————

X3

X2

X1

X0

000011

YAD

Y address register

—

Y4

Y3

Y2

Y1

Y0

000100

PTA

Port register A

———————

PA0

000101

PTB

Port register B

PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0

001000

FCR1

Control register 1

INC WLS KT

SHL

—

— DTY1 DTY0

001001

FCR2

Control register 2

—

T4

T3

T2

T1

— DISP

RS

Register select bit

1: RAM

0: Register

R/W Read/write select bit

1: Read

0: Write

ST0 to ST2

: Scan status

S0 to S4

: Key scan data

D0 to D7

: Display data and RAM read data

X0 to X3

: X address

Y0 to Y4

: Y address

PA0

: Port A data

PB0 to PB7 : Port B data (ML9090-01 only)

INC

: Address increment 1: X direction, 0: Y direction

WLS

: Word length select 1: 6 bits, 0: 8 bits

KT

: Key scan cycle select 1: 10 ms, 0: 5 ms

DTY0, DTY1: Display duty select (1/8, 1/9, 1/10) (ML9090-01)

(1/16, 1/17, 1/18) (ML9090-02)

SHL

: Common driver shift direction select bit

1: COM10ÆCOM1, 0 : COM1ÆCOM10 (ML9090-01)

1: COM18ÆCOM1, 0 : COM1ÆCOM18 (ML9090-02)

DISP

: Display ON/OFF select 1: Display ON, 0: Display OFF

T1 to T4

: Write "0"

—

: Don't care

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ML9090-01- Datasheet(PDF) 13 Page - OKI electronic componets

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