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EXAMPLES

a) transmit two bytes of RAM data

MGL752

S

A

0

S 0 1110

0

0

control byte

slave address

RAM/command byte

RAM DATA

M

S

B

L

S

B

A

A

P

R/W = 0

S

A

0

S 0 1110

0

0 1

0

A

A

A

P

RAM DATA

A

b) transmit two command bytes

COMMAND

S

A

0

S 0 1110

0

1 0

0

A

A

A

P

COMMAND

A

A

c) transmit one command byte and two RAM bytes

COMMAND

S

A

0

S 0 1110

0

1 0

00

01

0

A

A

A

P

RAM DATA

A

RAM DATA

A

A

Co RS

(3) RS = 0; data is a command byte

(4) Rs = 1; data is a display byte

Fig 16. Control byte format

MGL753

UNUSED

Co

RS

MSB

LSB