FEDL9489-02

ML9489

16/32

this 7-bit slave address and the R/W bit that indicates the data transfer direction. Always input "0" to the eighth

R/W bit because the ML9489 is a write-only LSI.

The eight bits next to the slave address is a control byte. The first one bit is CO: consecutive command setting bit

and the next one bit is RS: command/data setting bit (the remaining six bits are the Don't care bits).

When CO = "0": Means the last control byte.

When CO = "1": Means the control bytes are successively input.

When RS = "0": Means the data to be input next is the command data.

When RS = "1": Means the data to be input next is the display data.

The display data can be successively input.

Example of Data Setting



When inputting two commands



When inputting the command and display data

R/W

S

01

A CO RS

LSB

P

Salve address: 0 1 1 0 0 1

CO: Consecutive control byte setting bit

0: Last control byte, 1: Consecutive control byte

RS: Command/data setting bit

0: Command data, 1: Display data

Slave address

Control byte

DATA/Command

When inputting two commands

S

01

A

10

AA

00

AA

P

COMMAND

COMMAND

S

01

A

10

AA

01

AA

A

AA

A

P

Display data

Display data

COMMAND

Display data

Display data