ML9092-01TB datasheet(32/66 Pages) OKI

32 / 66 page

FEDL9092-01

OKI Semiconductor

ML9092-01/02/03/04

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Instruction Code List (ML9092-02/03)

Instruction Code

Data

No.

Instruction

Fixed bit R/W

Description

Key scan register read

ST2

ST1

ST0

Reads scan read timing bits (ST0 to ST2) and key scan

data (S0 to S4) of the key scan register.

Display data RAM write

Display data RAM read

X address register set

–

Sets the X address (X0 to X3) of the display data RAM.

Y address register set

–

Sets the Y address (Y0 to Y3) of the display data RAM.

Port register A set

–

PTA0 Controls the output of the general-purpose port A (PTA0).

Control register 1 set

INC

WLS

SHL

(BE)

DTY1 DTY0

Sets the address increment X or Y direction (INC), display

data word length (WLS), key scan time (KT), common

driver shift direction (SHL), voltage doubler control (BE)

(only applies to ML9092-02), port control (PE), and display

duty (DTY0, DTY1).

Control register 2 set

(STB) DISP

Sets or releases standby mode (only applies to ML9092-

03) and also sets display ON/OFF (DISP).

Rotary encoder read

Reads the counter bits (Q1 to Q4) of the rotary encoder.

Contrast ADJ set

–

CT3

CT2

CT1

CT0

Sets contrast adjustment values with the contrast

adjustment bits (CT0 to CT3).

Test register set

–

Test instruction exclusively used by manufacturer (T1 to

T5). Customers should not use this instruction.

Writes display data (D0 to D7) in the display data RAM

after setting the X address of Y address.

Reads display data (D0 to D7) from the display data RAM

after setting the X address of Y address.

Notes:

R/W

: Read/write select bit

1:Read, 0: Write

ST0 to ST2

: Key scan read count display bits

S0 to S3

: Key scan data

D0 to D7

: Write or read data of the display data RAM

X0 to X3

: X addresses of the display data RAM

Y0 to Y3

: Y addresses of the display data RAM

PTA0

: Port A data

INC

: Display data RAM address increment. 1: X direction, 0: Y direction

WLS

: Word length select bit

1: 6 bits, 0: 8 bits

: Key scan period select bit

1: 10 ms, 0: 0.5 ms

SHL

: Common driver shift direction select bit

1: COM10

→COM1, 0: COM1→COM10

BE (only applies to ML9092-02)

: Voltage doubler control bit

1: Voltage doubler enable

0: Voltage doubler disable

: Port enable/disable select bit

1: All ports enable

0: All ports go into high impedance for output

DTY0, DTY1

: Display duty select bits (1/8, 1/9, 1/10)

DISP

: Display ON/OFF select bit

1: Display ON, 0: Display OFF

Q1 to Q4

: Rotary encoder switch count bits (2’s complement)

CT0 to CT3

: Contrast adjustment bit

T1 to T5

: Bits for test instruction. Customers should not access these bits.

–

: Don’t Care

STB (only applies to ML9092-03)

: Standby mode/normal mode select bit

1: Standby mode, 0: Normal mode

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